CREATE TABLE company (id INT, name TEXT, country_code VARCHAR)
CREATE TABLE copyright (id INT, msid INT, cid INT)
CREATE TABLE producer (pid INT, gender TEXT, name TEXT, nationality TEXT, birth_city TEXT, birth_year INT)
CREATE TABLE cast (id INT, msid INT, aid INT, role TEXT)
CREATE TABLE made_by (id INT, msid INT, pid INT)
CREATE TABLE tv_series (sid INT, title TEXT, release_year INT, num_of_seasons INT, num_of_episodes INT, title_aka TEXT, budget TEXT)
CREATE TABLE tags (id INT, msid INT, kid INT)
CREATE TABLE movie (mid INT, title TEXT, release_year INT, title_aka TEXT, budget TEXT)
CREATE TABLE director (did INT, gender TEXT, name TEXT, nationality TEXT, birth_city TEXT, birth_year INT)
CREATE TABLE genre (gid INT, genre TEXT)
CREATE TABLE written_by (id INT, msid INT, wid INT)
CREATE TABLE writer (wid INT, gender TEXT, name TEXT, nationality TEXT, birth_city TEXT, birth_year INT)
CREATE TABLE directed_by (id INT, msid INT, did INT)
CREATE TABLE classification (id INT, msid INT, gid INT)
CREATE TABLE actor (aid INT, gender TEXT, name TEXT, nationality TEXT, birth_city TEXT, birth_year INT)
CREATE TABLE keyword (id INT, keyword TEXT)

Find all comedies produced in year 2015
SELECT movie.title FROM classification, genre, movie WHERE genre.genre = 'comedies' AND genre.gid = classification.gid AND movie.mid = classification.msid AND movie.release_year = 2015
SELECT "movie"."title" FROM "classification" JOIN "genre" ON "classification"."gid" = "genre"."gid" AND "genre"."genre" = 'comedies' JOIN "movie" ON "classification"."msid" = "movie"."mid" AND "movie"."release_year" = 2015