What is Tournament, when Date is "Sep 12, 1976"?
CREATE TABLE "lpga_tour_wins_27" (
  "date" text,
  "tournament" text,
  "winning_score" text,
  "margin_of_victory" text,
  "runner_s_up" text
);
SELECT "tournament" FROM "lpga_tour_wins_27" WHERE "date"='sep 12, 1976';