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_81 ( Id VARCHAR )

### Question ###
What is 2009, when 2004 is 2R, and when 1993 is A?

### Accurate SQL ###

SELECT 2009 FROM table_name_81 WHERE 2004 = "2r" AND 1993 = "a"