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_53 ( Id VARCHAR )

### Question ###
What is the 1991 when 1990 is ATP Masters Series?

### Accurate SQL ###

SELECT 1991 FROM table_name_53 WHERE 1990 = "atp masters series"