CREATE TABLE table_55504 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Attendance" FLOAT)

Who was the opponent on November 12, 1972?
SELECT "Opponent" FROM table_55504 WHERE "Date" = 'november 12, 1972'
SELECT "Opponent" FROM "table_55504" WHERE "Date" = 'november 12, 1972'