CREATE TABLE table_55012 ("Date" CLOB, "Score" CLOB, "Set 1" CLOB, "Set 2" CLOB, "Set 3" CLOB, "Total" CLOB)

What is the score of set 3 when the total is 45 31?
SELECT "Set 3" FROM table_55012 WHERE "Total" = '45–31'
SELECT "Set 3" FROM "table_55012" WHERE "Total" = '45–31'