CREATE TABLE table_75526 ("Res." CLOB, "Record" CLOB, "Opponent" CLOB, "Method" CLOB, "Event" CLOB, "Round" FLOAT, "Time" CLOB)

What opponent uses the method of decision and a 5-3 record?
SELECT "Opponent" FROM table_75526 WHERE "Method" = 'decision' AND "Record" = '5-3'
SELECT "Opponent" FROM "table_75526" WHERE "Method" = 'decision' AND "Record" = '5-3'