CREATE TABLE film (film_id DECIMAL, rank_in_series DECIMAL, number_in_season DECIMAL, title TEXT, directed_by TEXT, original_air_date TEXT, production_code TEXT)
CREATE TABLE schedule (cinema_id DECIMAL, film_id DECIMAL, date TEXT, show_times_per_day DECIMAL, price DECIMAL)
CREATE TABLE cinema (cinema_id DECIMAL, name TEXT, openning_year DECIMAL, capacity DECIMAL, location TEXT)

Show all the locations where some cinemas were opened in both year 2010 and year 2011.
SELECT location FROM cinema WHERE openning_year = 2010 INTERSECT SELECT location FROM cinema WHERE openning_year = 2011
SELECT "location" FROM "cinema" WHERE "openning_year" = 2010 INTERSECT SELECT "location" FROM "cinema" WHERE "openning_year" = 2011