In 2010, who was the Women's Singles player?
CREATE TABLE "winners" (
  "year" real,
  "men_s_singles" text,
  "women_s_singles" text,
  "men_s_doubles" text,
  "women_s_doubles" text,
  "mixed_doubles" text
);
SELECT "women_s_singles" FROM "winners" WHERE "year"=2010;