Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE book_club (category VARCHAR, YEAR INTEGER)

### Question ###
List categories that have at least two books after year 1989.

### Accurate SQL ###

SELECT category FROM book_club WHERE YEAR > 1989 GROUP BY category HAVING COUNT(*) >= 2