QIAN-ME/bird_schema_data huggingface dataset:
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    Please list the shapes of all the head cars on the trains that run in the east direction. head cars refers to position = 1;

    【Evidence】
    head cars refers to position = 1;

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT T1.shape FROM cars AS T1 INNER JOIN trains AS T2 ON T1.train_id = T2.id WHERE T2.direction = 'east' AND T1.position = 1 GROUP BY T1.shape
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    How many cars on a train that runs in the east direction have a flat roof? flat roof refers to roof = 'flat'

    【Evidence】
    flat roof refers to roof = 'flat'

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT SUM(CASE WHEN T1.roof = 'flat' THEN 1 ELSE 0 END)as count FROM cars AS T1 INNER JOIN trains AS T2 ON T1.train_id = T2.id WHERE T2.direction = 'east'
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    Among the cars on a train that runs in the east direction, how many of them have a flat roof and a circle load shape? flat roof refers to roof = 'flat'; load_shape = 'circle'

    【Evidence】
    flat roof refers to roof = 'flat'; load_shape = 'circle'

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT SUM(CASE WHEN T1.load_shape = 'circle' THEN 1 ELSE 0 END)as count FROM cars AS T1 INNER JOIN trains AS T2 ON T1.train_id = T2.id WHERE T2.direction = 'east' AND T1.roof = 'flat'
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    Trains that run in which direction have more rectangle-shaped cars in total? more rectangle-shaped cars refers to MAX(rectCarsNum)

    【Evidence】
    more rectangle-shaped cars refers to MAX(rectCarsNum)

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT T1.direction FROM trains AS T1 INNER JOIN ( SELECT train_id, COUNT(id) AS rectCarsNum FROM cars WHERE shape = 'rectangle' GROUP BY train_id ) AS T2 ON T1.id = T2.train_id ORDER BY T2.rectCarsNum DESC
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    Please list the directions in which the trains with 4 short cars run. short refers to len = 'short'; 4 cars run refers to position = 4

    【Evidence】
    short refers to len = 'short'; 4 cars run refers to position = 4

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT T2.direction FROM cars AS T1 INNER JOIN trains AS T2 ON T1.train_id = T2.id WHERE T1.len = 'short' AND T1.position = 4
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    What is the average number of cars on trains that run in the east direction? calculation = DIVIDE(count(id), count(train_id))

    【Evidence】
    calculation = DIVIDE(count(id), count(train_id))

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT CAST(COUNT(T1.id) AS REAL) / COUNT(DISTINCT T1.train_id) FROM cars AS T1 INNER JOIN trains AS T2 ON T1.train_id = T2.id WHERE T2.direction = 'east'
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    Among the trains that have at least one non-regular shaped car, what is the percentage of it running in the east direction? non-regular shaped car refers to shape in ('bucket', 'ellipse'); calculation = MULTIPLY(DIVIDE(count(direction = 'east' then train_id)), count(train_id), 100)

    【Evidence】
    non-regular shaped car refers to shape in ('bucket', 'ellipse'); calculation = MULTIPLY(DIVIDE(count(direction = 'east' then train_id)), count(train_id), 100)

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT CAST(COUNT(DISTINCT CASE WHEN T2.direction = 'east' THEN T1.train_id ELSE NULL END) AS REAL) * 100 / COUNT(DISTINCT T1.train_id) FROM cars AS T1 INNER JOIN trains AS T2 ON T1.train_id = T2.id WHERE T1.shape IN ('bucket', 'ellipse')
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    How many short cars are in the shape of hexagon? short cars refers to len = 'short'; in the shape of hexagon refers to shape = 'hexagon'

    【Evidence】
    short cars refers to len = 'short'; in the shape of hexagon refers to shape = 'hexagon'

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT COUNT(id) FROM cars WHERE shape = 'hexagon' AND len = 'short'
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    How many trains are running west? west is a direction

    【Evidence】
    west is a direction

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT COUNT(id) FROM trains WHERE direction = 'west'
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    What are the load shapes of all the short ellipse cars? short refers to len = 'short'; ellipse cars refers to shape = 'ellipse'

    【Evidence】
    short refers to len = 'short'; ellipse cars refers to shape = 'ellipse'

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT load_shape FROM cars WHERE shape = 'ellipse' AND len = 'short'
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    What are the ids of the train running east? east is a direction

    【Evidence】
    east is a direction

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT id FROM trains WHERE direction = 'east'
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    How many wheels do the long cars have? long cars refers to len = 'long'

    【Evidence】
    long cars refers to len = 'long'

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT SUM(wheels) FROM cars WHERE len = 'long'
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    Which direction do the majority of the trains are running? majority of train refers to MAX(count(id))

    【Evidence】
    majority of train refers to MAX(count(id))

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT direction FROM trains GROUP BY direction ORDER BY COUNT(id) DESC
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    Among the trains running east, how many trains have at least 4 cars? east is a direction; at least 4 cars refers to carsNum > = 4

    【Evidence】
    east is a direction; at least 4 cars refers to carsNum > = 4

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT SUM(CASE WHEN T1.direction = 'east' THEN 1 ELSE 0 END)as count FROM trains AS T1 INNER JOIN ( SELECT train_id, COUNT(id) AS carsNum FROM cars GROUP BY train_id ) AS T2 ON T1.id = T2.train_id WHERE T2.carsNum >= 4
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    Which direction do most of the trains with rectangle-shaped second cars run? most of the trains refers to MAX(count(id)); second cars refers to position = 2

    【Evidence】
    most of the trains refers to MAX(count(id)); second cars refers to position = 2

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT T2.direction FROM cars AS T1 INNER JOIN trains AS T2 ON T1.train_id = T2.id WHERE T1.position = 2 AND T1.shape = 'rectangle' GROUP BY T2.direction ORDER BY COUNT(T2.id) DESC LIMIT 1
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    How many trains running west have double sided cars in 3rd position? west is a direction; double sided cars refers to sides = 'double'; 3rd position refers to position = 3

    【Evidence】
    west is a direction; double sided cars refers to sides = 'double'; 3rd position refers to position = 3

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT COUNT(T.train_id) FROM (SELECT T1.train_id FROM cars AS T1 INNER JOIN trains AS T2 ON T1.train_id = T2.id WHERE T1.position = 3 AND T2.direction = 'west' AND T1.sides = 'double' GROUP BY T1.train_id)as T
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    How many eastbound trains have rectangular-shaped head cars? eastbound refers to direction = 'east'; head cars refers to position = 1

    【Evidence】
    eastbound refers to direction = 'east'; head cars refers to position = 1

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT COUNT(T.train_id) FROM (SELECT T1.train_id FROM cars AS T1 INNER JOIN trains AS T2 ON T1.train_id = T2.id WHERE T1.position = 1 AND T2.direction = 'east' AND T1.shape = 'rectangle' GROUP BY T1.train_id)as T
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    Among the trains running west, how many trains have no more than one car with an open roof? running west refers to direction = 'west'; open roof refers to roof = 'none'

    【Evidence】
    running west refers to direction = 'west'; open roof refers to roof = 'none'

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT SUM(CASE WHEN T1.direction = 'west' THEN 1 ELSE 0 END)as count FROM trains AS T1 INNER JOIN ( SELECT train_id, COUNT(id) FROM cars WHERE roof = 'none' GROUP BY train_id HAVING COUNT(id) = 1 ) AS T2 ON T1.id = T2.train_id
You are now a sqlite data analyst, and you are given a database schema as follows:

    【Schema】
    【DB_ID】 trains
【Schema】
# Table: trains
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(direction:TEXT, Examples: [east, west])
]
# Table: cars
[
(id:INTEGER, Primary Key, Examples: [1, 2, 3]),
(train_id:INTEGER, Examples: [1, 2, 3]),
(position:INTEGER, Examples: [1, 2, 3]),
(shape:TEXT, Examples: [rectangle, bucket, u_shaped]),
(len:TEXT, Examples: [short, long]),
(sides:TEXT, Examples: [not_double, double]),
(roof:TEXT, Examples: [none, peaked, flat]),
(wheels:INTEGER, Examples: [2, 3]),
(load_shape:TEXT, Examples: [circle, hexagon, triangle]),
(load_num:INTEGER, Examples: [1, 3, 2])
]
【Foreign keys】
cars.train_id=trains.id

    【Question】
    Which direction does the majority of the trains that have 3 cars are running? 3 cars refers to carsNum = 3

    【Evidence】
    3 cars refers to carsNum = 3

    Please read and understand the database schema carefully, and generate an executable SQL based on the user's question and evidence. 

SQL: SELECT T1.direction FROM trains AS T1 INNER JOIN ( SELECT train_id, COUNT(id) AS carsNum FROM cars GROUP BY train_id HAVING carsNum = 3 ) AS T2 ON T1.id = T2.train_id GROUP BY T1.direction