CREATE TABLE culture_company (company_name TEXT, type TEXT, incorporated_in TEXT, group_equity_shareholding DECIMAL, book_club_id TEXT, movie_id TEXT)
CREATE TABLE book_club (book_club_id DECIMAL, year DECIMAL, author_or_editor TEXT, book_title TEXT, publisher TEXT, category TEXT, result TEXT)
CREATE TABLE movie (movie_id DECIMAL, title TEXT, year DECIMAL, director TEXT, budget_million DECIMAL, gross_worldwide DECIMAL)

What categories have two or more corresponding books that were made after 1989?
SELECT category FROM book_club WHERE year > 1989 GROUP BY category HAVING COUNT(*) >= 2
SELECT "category" FROM "book_club" WHERE "year" > 1989 GROUP BY "category" HAVING COUNT(*) >= 2