Who played Women's singles when xiong guobao played men's singles, and tian bingyi li yongbo played Men's doubles?
CREATE TABLE "winners" (
  "year" text,
  "men_s_singles" text,
  "women_s_singles" text,
  "men_s_doubles" text,
  "women_s_doubles" text
);
SELECT "women_s_singles" FROM "winners" WHERE "men_s_singles"='xiong guobao' AND "men_s_doubles"='tian bingyi li yongbo';