Which Tournament was on the Date 6 Sep 2009?
CREATE TABLE "japan_golf_tour_wins_10" (
  "date" text,
  "tournament" text,
  "winning_score" text,
  "margin_of_victory" text,
  "runner_s_up" text
);
SELECT "tournament" FROM "japan_golf_tour_wins_10" WHERE "date"='6 sep 2009';