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_7 (set_3 VARCHAR, score VARCHAR, set_2 VARCHAR)

### Question ###
What is the Set 3 with a Score of 3–1, and has a Set 2 of 13–15?

### Accurate SQL ###

SELECT set_3 FROM table_name_7 WHERE score = "3–1" AND set_2 = "13–15"