What is the to par with the winning score of 74-67-71-73=285?
CREATE TABLE "ladies_european_tour_wins_6" (
  "no" real,
  "date" text,
  "tournament" text,
  "winning_score" text,
  "to_par" text,
  "margin_of_victory" text,
  "runner_s_up" text,
  "winners_share" real
);
SELECT "to_par" FROM "ladies_european_tour_wins_6" WHERE "winning_score"='74-67-71-73=285';