What is the total population of the neighborhoods Avondale Gardens, Irving Park, Kilbourn Park, Merchant Park, Old Irving Park, and The Villa?
"Avoladale Gardens", "Irving Park", "Kilbourn Park", "Merchant Park", "Old Irving Park", "The Villa" are neighborhood_name; total population refers to Sum(Population)
SELECT SUM(T2.population) AS sum FROM Neighborhood AS T1 INNER JOIN Community_Area AS T2 ON T1.community_area_no = T2.community_area_no WHERE T1.neighborhood_name = 'Avondale Gardens' OR T1.neighborhood_name = 'Irving Park' OR T1.neighborhood_name = 'Kilbourn Park' OR T1.neighborhood_name = 'Merchant Park' OR T1.neighborhood_name = 'Old Irving Park' OR T1.neighborhood_name = 'The Villa'
CREATE TABLE Community_Area
(
    community_area_no   INTEGER
            primary key,
    community_area_name TEXT,
    side                TEXT,
    population          TEXT
);
CREATE TABLE District
(
    district_no   INTEGER
            primary key,
    district_name TEXT,
    address       TEXT,
    zip_code      INTEGER,
    commander     TEXT,
    email         TEXT,
    phone         TEXT,
    fax           TEXT,
    tty           TEXT,
    twitter       TEXT
);
CREATE TABLE FBI_Code
(
    fbi_code_no   TEXT
            primary key,
    title         TEXT,
    description   TEXT,
    crime_against TEXT
);
CREATE TABLE IUCR
(
    iucr_no               TEXT
            primary key,
    primary_description   TEXT,
    secondary_description TEXT,
    index_code            TEXT
);
CREATE TABLE Neighborhood
(
    neighborhood_name TEXT
            primary key,
    community_area_no INTEGER,
    foreign key (community_area_no) references Community_Area(community_area_no)
);
CREATE TABLE Ward
(
    ward_no                INTEGER
            primary key,
    alderman_first_name    TEXT,
    alderman_last_name     TEXT,
    alderman_name_suffix   TEXT,
    ward_office_address    TEXT,
    ward_office_zip        TEXT,
    ward_email             TEXT,
    ward_office_phone      TEXT,
    ward_office_fax        TEXT,
    city_hall_office_room  INTEGER,
    city_hall_office_phone TEXT,
    city_hall_office_fax   TEXT,
    Population             INTEGER
);
CREATE TABLE Crime
(
    report_no            INTEGER
            primary key,
    case_number          TEXT,
    date                 TEXT,
    block                TEXT,
    iucr_no              TEXT,
    location_description TEXT,
    arrest               TEXT,
    domestic             TEXT,
    beat                 INTEGER,
    district_no          INTEGER,
    ward_no              INTEGER,
    community_area_no    INTEGER,
    fbi_code_no          TEXT,
    latitude             TEXT,
    longitude            TEXT,
    foreign key (ward_no) references Ward(ward_no),
    foreign key (iucr_no) references IUCR(iucr_no),
    foreign key (district_no) references District(district_no),
    foreign key (community_area_no) references Community_Area(community_area_no),
    foreign key (fbi_code_no) references FBI_Code(fbi_code_no)
);
