What is Winning Score, when Date is Jul 27, 1997?
CREATE TABLE "pga_tour_wins_6" (
  "date" text,
  "tournament" text,
  "winning_score" text,
  "margin_of_victory" text,
  "runner_s_up" text
);
SELECT "winning_score" FROM "pga_tour_wins_6" WHERE "date"='jul 27, 1997';