What is the wager on August 23, 1992 where vampiro was the winner?
CREATE TABLE "luchas_de_apuestas_record" (
  "wager" text,
  "winner" text,
  "loser" text,
  "location" text,
  "date" text
);
SELECT "wager" FROM "luchas_de_apuestas_record" WHERE "winner"='vampiro' AND "date"='august 23, 1992';