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 table_name_56 (Id VARCHAR)

### Question ###
What was the 1989 result for the tournament with 1984 of a, 1985 of a, and 1990 of a?

### Accurate SQL ###

SELECT 1989 FROM table_name_56 WHERE 1984 = "a" AND 1985 = "a" AND 1990 = "a"