Dludora/DAIL-BIRD huggingface dataset:
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: Identify the border's coordinates on the X and Y axes that enclose a folk in image no. 6. coordinates on the X and Y axes refers to X and Y; folk refers to OBJ_CLASS = 'folk'; image no. 6 refers to IMG_ID = 6 */
SELECT 
SELECT T1.X, T1.Y FROM IMG_OBJ AS T1 INNER JOIN OBJ_CLASSES AS T2 ON T1.OBJ_CLASS_ID = T2.OBJ_CLASS_ID WHERE T1.IMG_ID = 6 AND T2.OBJ_CLASS = 'folk'
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: Define the onion's bounding box on image no. 285930. bounding box refers to (X, Y, W, H); onion refers to OBJ_CLASS = 'onion'; image no.285930 refers to IMG_ID = 285930 */
SELECT 
SELECT T1.X, T1.Y, T1.W, T1.H FROM IMG_OBJ AS T1 INNER JOIN OBJ_CLASSES AS T2 ON T1.OBJ_CLASS_ID = T2.OBJ_CLASS_ID WHERE T1.IMG_ID = 285930 AND T2.OBJ_CLASS = 'onion'
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: How many objects can you spot in image no. 72? What objects may be identified on the same image and within the bounding box represented as (341, 27, 42, 51)? How many objects refers to OBJ_CLASS_ID; image no. 72 refers to IMG_ID = 72; What objects refers to OBJ_CLASS; bounding box represented as (341, 27, 42, 51) refers to X = 341 and Y = 27 and W = 42 and H = 51 */
SELECT 
SELECT SUM(IIF(T1.IMG_ID = 1, 1, 0)), SUM(IIF(T1.X = 341 AND T1.Y = 27 AND T1.W = 42 AND T1.H = 51, 1, 0)) FROM IMG_OBJ AS T1 INNER JOIN OBJ_CLASSES AS T2 ON T1.OBJ_CLASS_ID = T2.OBJ_CLASS_ID
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: On image no. 5, name the attributes that are composed of multiple objects. image no. 5 refers to IMG_ID = 5; name the attributes refers to ATT_CLASS; multiple objects refers to count(ATT_CLASS) > = 2 */
SELECT 
SELECT T2.ATT_CLASS FROM IMG_OBJ_ATT AS T1 INNER JOIN ATT_CLASSES AS T2 ON T1.ATT_CLASS_ID = T2.ATT_CLASS_ID WHERE T1.IMG_ID = 5 GROUP BY T2.ATT_CLASS HAVING COUNT(T2.ATT_CLASS) > 2
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: What attributes are used to describe the wall on image no. 27. What attributes refers to ATT_CLASS; wall on image no. 27 refers to OBJ_CLASS = 'wall' and IMG_ID = 27 */
SELECT 
SELECT T4.ATT_CLASS FROM IMG_OBJ AS T1 INNER JOIN OBJ_CLASSES AS T2 ON T1.OBJ_CLASS_ID = T2.OBJ_CLASS_ID INNER JOIN IMG_OBJ_ATT AS T3 ON T1.IMG_ID = T3.IMG_ID INNER JOIN ATT_CLASSES AS T4 ON T3.ATT_CLASS_ID = T4.ATT_CLASS_ID WHERE T2.OBJ_CLASS = 'wall' AND T1.IMG_ID = 27 GROUP BY T4.ATT_CLASS
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: Name the object element that is described as being scattered on image no. 10. Name the object element refers to OBJ_CLASS; scattered refers to ATT_CLASS = 'scattered'; image no. 10 refers to IMG_ID = 10 */
SELECT 
SELECT T2.OBJ_CLASS FROM IMG_OBJ AS T1 INNER JOIN OBJ_CLASSES AS T2 ON T1.OBJ_CLASS_ID = T2.OBJ_CLASS_ID INNER JOIN IMG_OBJ_ATT AS T3 ON T1.IMG_ID = T3.IMG_ID INNER JOIN ATT_CLASSES AS T4 ON T3.ATT_CLASS_ID = T4.ATT_CLASS_ID WHERE T4.ATT_CLASS = 'scattered' AND T1.IMG_ID = 10 GROUP BY T2.OBJ_CLASS
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: How many images contain 'bridge' as an object element? images refers to IMG_ID; 'bridge' as an object element refers to OBJ_CLASS = 'bridge' */
SELECT 
SELECT COUNT(DISTINCT T1.IMG_ID) FROM IMG_OBJ AS T1 INNER JOIN OBJ_CLASSES AS T2 ON T1.OBJ_CLASS_ID = T2.OBJ_CLASS_ID WHERE T2.OBJ_CLASS = 'bridge'
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: How many object elements are there on average in each image? object elements refers to OBJ_CLASS_ID; average = divide(count(OBJ_CLASS_ID), count(IMG_ID)) */
SELECT 
SELECT CAST(COUNT(OBJ_CLASS_ID) AS REAL) / COUNT(DISTINCT IMG_ID) FROM IMG_OBJ
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: What colour is the van that can be spotted in image no. 1? colour refers to ATT_CLASS; van refers to OBJ_CLASS = 'van'; image no. 1 refers to IMG_ID = 1 */
SELECT 
SELECT T4.ATT_CLASS FROM IMG_OBJ AS T1 INNER JOIN OBJ_CLASSES AS T2 ON T1.OBJ_CLASS_ID = T2.OBJ_CLASS_ID INNER JOIN IMG_OBJ_ATT AS T3 ON T1.IMG_ID = T3.IMG_ID INNER JOIN ATT_CLASSES AS T4 ON T3.ATT_CLASS_ID = T4.ATT_CLASS_ID WHERE T2.OBJ_CLASS = 'van' AND T1.IMG_ID = 1 GROUP BY T4.ATT_CLASS
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: Describe the objects, their attributes, and the relationships that comprise the scene on image no. 1 within the bounding box, represented as (388, 369, 48, 128). objects refers to OBJ_CLASS; attributes refers to ATT_CLASS; relationships refers to PRED_CLASS; image no. 1 refers to IMG_ID = 1; bounding box, represented as (388, 369, 48, 128) refers to X = 388 and Y = 369 and W = 48 and H = 128 */
SELECT 
SELECT DISTINCT T2.OBJ_CLASS, T4.ATT_CLASS, T6.PRED_CLASS FROM IMG_OBJ AS T1 INNER JOIN OBJ_CLASSES AS T2 ON T1.OBJ_CLASS_ID = T2.OBJ_CLASS_ID INNER JOIN IMG_OBJ_ATT AS T3 ON T1.IMG_ID = T3.IMG_ID INNER JOIN ATT_CLASSES AS T4 ON T3.ATT_CLASS_ID = T4.ATT_CLASS_ID INNER JOIN IMG_REL AS T5 ON T1.IMG_ID = T5.IMG_ID INNER JOIN PRED_CLASSES AS T6 ON T5.PRED_CLASS_ID = T6.PRED_CLASS_ID WHERE T1.IMG_ID = 1 AND T1.X = 388 AND T1.Y = 369 AND T1.W = 48 AND T1.H = 128
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: What is the relationship between object sample no. 25 and object sample no. 2 on image no. 1? relationship refers to PRED_CLASS; object sample no. 25 and object sample no. 2 refers to OBJ1_SAMPLE_ID = 25 and OBJ2_SAMPLE_ID = 2; image no. 1 refers to IMG_ID = 1 */
SELECT 
SELECT T2.PRED_CLASS FROM IMG_REL AS T1 INNER JOIN PRED_CLASSES AS T2 ON T1.PRED_CLASS_ID = T2.PRED_CLASS_ID WHERE T1.IMG_ID = 1 AND T1.OBJ1_SAMPLE_ID = 25 AND T1.OBJ2_SAMPLE_ID = 2
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: How many attributes are related to the object sample no. 7 on image no. 4? How many attributes refers to ATT_CLASS_ID; object sample no. 7 on image no. 4 refers to IMG_ID = 4 and OBJ_SAMPLE_ID = 7 */
SELECT 
SELECT COUNT(ATT_CLASS_ID) FROM IMG_OBJ_ATT WHERE IMG_ID = 4 AND OBJ_SAMPLE_ID = 7
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: How many object elements can be detected on image no. 31? How many object elements refers to OBJ_CLASS_ID; image no. 31 refers to IMG_ID = 31 */
SELECT 
SELECT COUNT(OBJ_CLASS_ID) FROM IMG_OBJ WHERE IMG_ID = 31
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: On image no. 20, identify the attribute ID that is composed of the highest number of objects. image no. 20 refers to IMG_ID = 20; attribute ID refers to ATT_CLASS_ID; highest number of objects refers to max(count(ATT_CLASS_ID)) */
SELECT 
SELECT ATT_CLASS_ID FROM IMG_OBJ_ATT WHERE IMG_ID = 20 GROUP BY ATT_CLASS_ID ORDER BY COUNT(ATT_CLASS_ID) DESC LIMIT 1
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: Define the bounding box of the object sample no. 7 on image no. 42. bounding box of the object refers to (X, Y, W, H); sample no.7 on image no.42 refers to IMG_ID = 42 and OBJ_SAMPLE_ID = 7 */
SELECT 
SELECT X, Y, W, H FROM IMG_OBJ WHERE IMG_ID = 42 AND OBJ_SAMPLE_ID = 7
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: On image no. 99 identify the percentage of objects that are described as white. image no. 99 refers to IMG_ID = 99; described as white refers to ATT_CLASS = 'white'; percentage = divide(count(OBJ_SAMPLE_ID) where ATT_CLASS = 'white', count(OBJ_SAMPLE_ID)) as percentage */
SELECT 
SELECT CAST(SUM(CASE WHEN T2.ATT_CLASS = 'white' THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(OBJ_SAMPLE_ID) FROM IMG_OBJ_ATT AS T1 INNER JOIN ATT_CLASSES AS T2 ON T1.ATT_CLASS_ID = T2.ATT_CLASS_ID WHERE T1.IMG_ID = 99
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: How many attribute classes are there for image id 5? attribute classes refer to ATT_CLASS_ID; image id 5 refers to IMG_ID = 5; */
SELECT 
SELECT COUNT(ATT_CLASS_ID) FROM IMG_OBJ_ATT WHERE IMG_ID = 5
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: State the explanation about object class 10. explanation about object class 10 refers to OBJ_CLASS where OBJ_CLASS_ID = 10; */
SELECT 
SELECT OBJ_CLASS FROM OBJ_CLASSES WHERE OBJ_CLASS_ID = 10
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: Name the object class of the image with a bounding (422, 63, 77, 363). image with a bounding (422, 63, 77, 363) refers to OBJ_CLASS_ID where X = 422 and Y = 63 and W = 77 and H = 363; */
SELECT 
SELECT T2.OBJ_CLASS FROM IMG_OBJ AS T1 INNER JOIN OBJ_CLASSES AS T2 ON T1.OBJ_CLASS_ID = T2.OBJ_CLASS_ID WHERE T1.X = 422 AND T1.Y = 63 AND T1.W = 77 AND T1.H = 363
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: What is the caption for the prediction class id 12? caption for the prediction class id 12 refers to PRED_CLASS where PRED_CLASS_ID = 12; */
SELECT 
SELECT PRED_CLASS FROM PRED_CLASSES WHERE PRED_CLASS_ID = 12
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: Indicate the bounding box of the image 8. bounding box refers to X, Y, W, H from IMG_OBJ; image 8 refers to IMG_ID = 8; */
SELECT 
SELECT X, Y, W, H FROM IMG_OBJ WHERE IMG_ID = 8
/* Given the following database schema: */
CREATE TABLE ATT_CLASSES
(
    ATT_CLASS_ID INTEGER default 0 not null
        primary key,
    ATT_CLASS    TEXT      not null
)

CREATE TABLE OBJ_CLASSES
(
    OBJ_CLASS_ID INTEGER default 0 not null
        primary key,
    OBJ_CLASS    TEXT      not null
)

CREATE TABLE IMG_OBJ
(
    IMG_ID        INTEGER default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    OBJ_CLASS_ID  INTEGER              null,
    X             INTEGER              null,
    Y             INTEGER             null,
    W             INTEGER              null,
    H             INTEGER              null,
    primary key (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (OBJ_CLASS_ID) references OBJ_CLASSES (OBJ_CLASS_ID)
)

CREATE TABLE IMG_OBJ_ATT
(
    IMG_ID        INTEGER default 0 not null,
    ATT_CLASS_ID  INTEGER    default 0 not null,
    OBJ_SAMPLE_ID INTEGER    default 0 not null,
    primary key (IMG_ID, ATT_CLASS_ID, OBJ_SAMPLE_ID),
    foreign key (ATT_CLASS_ID) references ATT_CLASSES (ATT_CLASS_ID),
    foreign key (IMG_ID, OBJ_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

CREATE TABLE PRED_CLASSES
(
    PRED_CLASS_ID INTEGER default 0 not null
        primary key,
    PRED_CLASS    TEXT     not null
)

CREATE TABLE IMG_REL
(
    IMG_ID         INTEGER default 0 not null,
    PRED_CLASS_ID  INTEGER    default 0 not null,
    OBJ1_SAMPLE_ID INTEGER    default 0 not null,
    OBJ2_SAMPLE_ID INTEGER   default 0 not null,
    primary key (IMG_ID, PRED_CLASS_ID, OBJ1_SAMPLE_ID, OBJ2_SAMPLE_ID),
    foreign key (PRED_CLASS_ID) references PRED_CLASSES (PRED_CLASS_ID),
    foreign key (IMG_ID, OBJ1_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID),
    foreign key (IMG_ID, OBJ2_SAMPLE_ID) references IMG_OBJ (IMG_ID, OBJ_SAMPLE_ID)
)

/* Answer the following: How many object samples in image no.908 are in the class of tip? object samples in the class of "tip" refer to OBJ_CLASS_ID where OBJ_CLASS = 'tip'; image no.5 refers to IMG_ID = 5; */
SELECT 
SELECT SUM(CASE WHEN T2.OBJ_CLASS = 'tip' THEN 1 ELSE 0 END) FROM IMG_OBJ AS T1 INNER JOIN OBJ_CLASSES AS T2 ON T1.OBJ_CLASS_ID = T2.OBJ_CLASS_ID WHERE T1.IMG_ID = 908