CREATE TABLE table_35647 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Attendance" FLOAT)

Who was the opponent of the game before week 11 on October 31, 1976?
SELECT "Opponent" FROM table_35647 WHERE "Week" < '11' AND "Date" = 'october 31, 1976'
SELECT "Opponent" FROM "table_35647" WHERE "Date" = 'october 31, 1976' AND "Week" < '11'