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_75 (Id VARCHAR)

### Question ###
What is the 1993 value with a 1r in 1991 and sf in 1990?

### Accurate SQL ###

SELECT 1993 FROM table_name_75 WHERE 1991 = "1r" AND 1990 = "sf"