What is the Surface of the match with winner as outcome and a score of 7–5, 7–5?
CREATE TABLE "doubles_7_2_titles_5_runners_up" (
  "outcome" text,
  "date" text,
  "surface" text,
  "partner" text,
  "opponents" text,
  "score" text
);
SELECT "surface" FROM "doubles_7_2_titles_5_runners_up" WHERE "outcome"='winner' AND "score"='7–5, 7–5';