CREATE TABLE "past_winners" (
  "year" text,
  "men_s_singles" text,
  "women_s_singles" text,
  "men_s_doubles" text,
  "women_s_doubles" text,
  "mixed_doubles" text
);

Question: who won the women's doubles at the same time the men's doubles had tijs creemers quinten van dalm?
SQL: SELECT "women_s_doubles" FROM "past_winners" WHERE "men_s_doubles"='tijs creemers quinten van dalm';

Question: what year saw georgy trouerbach nicole van hooren win the women's doubles?
SQL: SELECT "year" FROM "past_winners" WHERE "women_s_doubles"='georgy trouerbach nicole van hooren';

Question: who won the women's singles in 1992?
SQL: SELECT "women_s_singles" FROM "past_winners" WHERE "year"='1992';

Question: who won the women's singles at the same time the men's doubles was won by seno the uun santosa?
SQL: SELECT "women_s_singles" FROM "past_winners" WHERE "men_s_doubles"='seno the uun santosa';

Question: who won the men's doubles in 1933?
SQL: SELECT "men_s_doubles" FROM "past_winners" WHERE "year"='1933';