### Database Schema
CREATE TABLE "borders"
(
    Country1 TEXT default '' not null
        constraint borders_ibfk_1
            references country,
    Country2 TEXT default '' not null
        constraint borders_ibfk_2
            references country,
    Length   REAL,
    primary key (Country1, Country2)
)

CREATE TABLE "city"
(
    Name       TEXT default '' not null,
    Country    TEXT default '' not null
        constraint city_ibfk_1
            references country
            on update cascade on delete cascade,
    Province   TEXT default '' not null,
    Population INTEGER,
    Longitude  REAL,
    Latitude   REAL,
    primary key (Name, Province),
    constraint city_ibfk_2
        foreign key (Province, Country) references province
            on update cascade on delete cascade
)

CREATE TABLE "continent"
(
    Name TEXT default '' not null
        primary key,
    Area REAL
)

CREATE TABLE "country"
(
    Name       TEXT            not null
        constraint ix_county_Name
            unique,
    Code       TEXT default '' not null
        primary key,
    Capital    TEXT,
    Province   TEXT,
    Area       REAL,
    Population INTEGER
)

CREATE TABLE "desert"
(
    Name      TEXT default '' not null
        primary key,
    Area      REAL,
    Longitude REAL,
    Latitude  REAL
)

CREATE TABLE "economy"
(
    Country     TEXT default '' not null
        primary key
        constraint economy_ibfk_1
            references country
            on update cascade on delete cascade,
    GDP         REAL,
    Agriculture REAL,
    Service     REAL,
    Industry    REAL,
    Inflation   REAL
)

CREATE TABLE "encompasses"
(
    Country    TEXT not null
        constraint encompasses_ibfk_1
            references country
            on update cascade on delete cascade,
    Continent  TEXT not null
        constraint encompasses_ibfk_2
            references continent
            on update cascade on delete cascade,
    Percentage REAL,
    primary key (Country, Continent)
)

CREATE TABLE "ethnicGroup"
(
    Country    TEXT default '' not null
        constraint ethnicGroup_ibfk_1
            references country
            on update cascade on delete cascade,
    Name       TEXT default '' not null,
    Percentage REAL,
    primary key (Name, Country)
)

CREATE TABLE "geo_desert"
(
    Desert   TEXT default '' not null
        constraint geo_desert_ibfk_3
            references desert
            on update cascade on delete cascade,
    Country  TEXT default '' not null
        constraint geo_desert_ibfk_1
            references country
            on update cascade on delete cascade,
    Province TEXT default '' not null,
    primary key (Province, Country, Desert),
    constraint geo_desert_ibfk_2
        foreign key (Province, Country) references province
            on update cascade on delete cascade
)

CREATE TABLE "geo_estuary"
(
    River    TEXT default '' not null
        constraint geo_estuary_ibfk_3
            references river
            on update cascade on delete cascade,
    Country  TEXT default '' not null
        constraint geo_estuary_ibfk_1
            references country
            on update cascade on delete cascade,
    Province TEXT default '' not null,
    primary key (Province, Country, River),
    constraint geo_estuary_ibfk_2
        foreign key (Province, Country) references province
            on update cascade on delete cascade
)

CREATE TABLE "geo_island"
(
    Island   TEXT default '' not null
        constraint geo_island_ibfk_3
            references island
            on update cascade on delete cascade,
    Country  TEXT default '' not null
        constraint geo_island_ibfk_1
            references country
            on update cascade on delete cascade,
    Province TEXT default '' not null,
    primary key (Province, Country, Island),
    constraint geo_island_ibfk_2
        foreign key (Province, Country) references province
            on update cascade on delete cascade
)

CREATE TABLE "geo_lake"
(
    Lake     TEXT default '' not null
        constraint geo_lake_ibfk_3
            references lake
            on update cascade on delete cascade,
    Country  TEXT default '' not null
        constraint geo_lake_ibfk_1
            references country
            on update cascade on delete cascade,
    Province TEXT default '' not null,
    primary key (Province, Country, Lake),
    constraint geo_lake_ibfk_2
        foreign key (Province, Country) references province
            on update cascade on delete cascade
)

CREATE TABLE "geo_mountain"
(
    Mountain TEXT default '' not null
        constraint geo_mountain_ibfk_3
            references mountain
            on update cascade on delete cascade,
    Country  TEXT default '' not null
        constraint geo_mountain_ibfk_1
            references country
            on update cascade on delete cascade,
    Province TEXT default '' not null,
    primary key (Province, Country, Mountain),
    constraint geo_mountain_ibfk_2
        foreign key (Province, Country) references province
            on update cascade on delete cascade
)

CREATE TABLE "geo_river"
(
    River    TEXT default '' not null
        constraint geo_river_ibfk_3
            references river
            on update cascade on delete cascade,
    Country  TEXT default '' not null
        constraint geo_river_ibfk_1
            references country
            on update cascade on delete cascade,
    Province TEXT default '' not null,
    primary key (Province, Country, River),
    constraint geo_river_ibfk_2
        foreign key (Province, Country) references province
            on update cascade on delete cascade
)

CREATE TABLE "geo_sea"
(
    Sea      TEXT default '' not null
        constraint geo_sea_ibfk_3
            references sea
            on update cascade on delete cascade,
    Country  TEXT default '' not null
        constraint geo_sea_ibfk_1
            references country
            on update cascade on delete cascade,
    Province TEXT default '' not null,
    primary key (Province, Country, Sea),
    constraint geo_sea_ibfk_2
        foreign key (Province, Country) references province
            on update cascade on delete cascade
)

CREATE TABLE "geo_source"
(
    River    TEXT default '' not null
        constraint geo_source_ibfk_3
            references river
            on update cascade on delete cascade,
    Country  TEXT default '' not null
        constraint geo_source_ibfk_1
            references country
            on update cascade on delete cascade,
    Province TEXT default '' not null,
    primary key (Province, Country, River),
    constraint geo_source_ibfk_2
        foreign key (Province, Country) references province
            on update cascade on delete cascade
)

CREATE TABLE "island"
(
    Name      TEXT default '' not null
        primary key,
    Islands   TEXT,
    Area      REAL,
    Height    REAL,
    Type      TEXT,
    Longitude REAL,
    Latitude  REAL
)

CREATE TABLE "islandIn"
(
    Island TEXT
        constraint islandIn_ibfk_4
            references island
            on update cascade on delete cascade,
    Sea    TEXT
        constraint islandIn_ibfk_3
            references sea
            on update cascade on delete cascade,
    Lake   TEXT
        constraint islandIn_ibfk_1
            references lake
            on update cascade on delete cascade,
    River  TEXT
        constraint islandIn_ibfk_2
            references river
            on update cascade on delete cascade
)

CREATE TABLE "isMember"
(
    Country      TEXT default '' not null
        constraint isMember_ibfk_1
            references country
            on update cascade on delete cascade,
    Organization TEXT default '' not null
        constraint isMember_ibfk_2
            references organization
            on update cascade on delete cascade,
    Type         TEXT default 'member',
    primary key (Country, Organization)
)

CREATE TABLE "lake"
(
    Name      TEXT default '' not null
        primary key,
    Area      REAL,
    Depth     REAL,
    Altitude  REAL,
    Type      TEXT,
    River     TEXT,
    Longitude REAL,
    Latitude  REAL
)

CREATE TABLE "language"
(
    Country    TEXT default '' not null
        constraint language_ibfk_1
            references country
            on update cascade on delete cascade,
    Name       TEXT default '' not null,
    Percentage REAL,
    primary key (Name, Country)
)

CREATE TABLE "located"
(
    City     TEXT,
    Province TEXT,
    Country  TEXT
        constraint located_ibfk_1
            references country
            on update cascade on delete cascade,
    River    TEXT
        constraint located_ibfk_3
            references river
            on update cascade on delete cascade,
    Lake     TEXT
        constraint located_ibfk_4
            references lake
            on update cascade on delete cascade,
    Sea      TEXT
        constraint located_ibfk_5
            references sea
            on update cascade on delete cascade,
    constraint located_ibfk_2
        foreign key (City, Province) references city
            on update cascade on delete cascade,
    constraint located_ibfk_6
        foreign key (Province, Country) references province
            on update cascade on delete cascade
)

CREATE TABLE "locatedOn"
(
    City     TEXT default '' not null,
    Province TEXT default '' not null,
    Country  TEXT default '' not null
        constraint locatedOn_ibfk_1
            references country
            on update cascade on delete cascade,
    Island   TEXT default '' not null
        constraint locatedOn_ibfk_2
            references island
            on update cascade on delete cascade,
    primary key (City, Province, Country, Island),
    constraint locatedOn_ibfk_3
        foreign key (City, Province) references city
            on update cascade on delete cascade,
    constraint locatedOn_ibfk_4
        foreign key (Province, Country) references province
            on update cascade on delete cascade
)

CREATE TABLE "mergesWith"
(
    Sea1 TEXT default '' not null
        constraint mergesWith_ibfk_1
            references sea
            on update cascade on delete cascade,
    Sea2 TEXT default '' not null
        constraint mergesWith_ibfk_2
            references sea
            on update cascade on delete cascade,
    primary key (Sea1, Sea2)
)

CREATE TABLE "mountain"
(
    Name      TEXT default '' not null
        primary key,
    Mountains TEXT,
    Height    REAL,
    Type      TEXT,
    Longitude REAL,
    Latitude  REAL
)

CREATE TABLE "mountainOnIsland"
(
    Mountain TEXT default '' not null
        constraint mountainOnIsland_ibfk_2
            references mountain
            on update cascade on delete cascade,
    Island   TEXT default '' not null
        constraint mountainOnIsland_ibfk_1
            references island
            on update cascade on delete cascade,
    primary key (Mountain, Island)
)

CREATE TABLE "organization"
(
    Abbreviation TEXT not null
        primary key,
    Name         TEXT not null
        constraint ix_organization_OrgNameUnique
            unique,
    City         TEXT,
    Country      TEXT
        constraint organization_ibfk_1
            references country
            on update cascade on delete cascade,
    Province     TEXT,
    Established  DATE,
    constraint organization_ibfk_2
        foreign key (City, Province) references city
            on update cascade on delete cascade,
    constraint organization_ibfk_3
        foreign key (Province, Country) references province
            on update cascade on delete cascade
)

CREATE TABLE "politics"
(
    Country      TEXT default '' not null
        primary key
        constraint politics_ibfk_1
            references country
            on update cascade on delete cascade,
    Independence DATE,
    Dependent    TEXT
        constraint politics_ibfk_2
            references country
            on update cascade on delete cascade,
    Government   TEXT
)

CREATE TABLE "population"
(
    Country           TEXT default '' not null
        primary key
        constraint population_ibfk_1
            references country
            on update cascade on delete cascade,
    Population_Growth REAL,
    Infant_Mortality  REAL
)

CREATE TABLE "province"
(
    Name       TEXT not null,
    Country    TEXT not null
        constraint province_ibfk_1
            references country
            on update cascade on delete cascade,
    Population INTEGER,
    Area       REAL,
    Capital    TEXT,
    CapProv    TEXT,
    primary key (Name, Country)
)

CREATE TABLE "religion"
(
    Country    TEXT default '' not null
        constraint religion_ibfk_1
            references country
            on update cascade on delete cascade,
    Name       TEXT default '' not null,
    Percentage REAL,
    primary key (Name, Country)
)

CREATE TABLE "river"
(
    Name             TEXT default '' not null
        primary key,
    River            TEXT,
    Lake             TEXT
        constraint river_ibfk_1
            references lake
            on update cascade on delete cascade,
    Sea              TEXT,
    Length           REAL,
    SourceLongitude  REAL,
    SourceLatitude   REAL,
    Mountains        TEXT,
    SourceAltitude   REAL,
    EstuaryLongitude REAL,
    EstuaryLatitude  REAL
)

CREATE TABLE "sea"
(
    Name  TEXT default '' not null
        primary key,
    Depth REAL
)

CREATE TABLE "target"
(
    Country TEXT not null
        primary key
        constraint target_Country_fkey
            references country
            on update cascade on delete cascade,
    Target  TEXT
)

### Question
What is the population density of the nation whose capital city is in the Distrito Federal province, and what portion of its gross domestic product is devoted to its industries?

### Hint
ation and country are synonyms; Gross domestic product = GDP; Portion of GDP devoted to industries appears in economy.Industry; Population Density = Population / Area

### SQL
SELECT T1.Population / T1.Area, T2.Industry FROM country AS T1 INNER JOIN economy AS T2 ON T1.Code = T2.Country WHERE T1.Province = 'Distrito Federal'