Who was the opponent after week 9 with over 49,221 attending, and a Result of w 38-20?
CREATE TABLE "schedule" (
  "week" real,
  "date" text,
  "opponent" text,
  "result" text,
  "venue" text,
  "attendance" real
);
SELECT "opponent" FROM "schedule" WHERE "week">9 AND "attendance">'49,221' AND "result"='w 38-20';