CREATE TABLE table_53589 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Game site" CLOB, "Attendance" FLOAT)

What opponent had a game with more than 50,705 in attendace on September 13, 1982?
SELECT "Opponent" FROM table_53589 WHERE "Attendance" > '50,705' AND "Date" = 'september 13, 1982'
SELECT "Opponent" FROM "table_53589" WHERE "Attendance" > '50,705' AND "Date" = 'september 13, 1982'