On 9/3/97, what was the score that resulted in a w?
CREATE TABLE "challenge_cup" (
  "date" text,
  "competition" text,
  "venue" text,
  "result" text,
  "score" text,
  "goals" text
);
SELECT "score" FROM "challenge_cup" WHERE "result"='w' AND "date"='9/3/97';