CREATE TABLE table_5503 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Attendance" FLOAT)

Who was the opponent on November 11, 1951?
SELECT "Opponent" FROM table_5503 WHERE "Date" = 'november 11, 1951'
SELECT "Opponent" FROM "table_5503" WHERE "Date" = 'november 11, 1951'