CREATE TABLE "past_winners" (
  "year" real,
  "mens_singles" text,
  "womens_singles" text,
  "mens_doubles" text,
  "womens_doubles" text,
  "mixed_doubles" text
);

Question: How may women doubles winner were there when Philippe Aulner was mens singles winner?
SQL: SELECT COUNT("womens_doubles") FROM "past_winners" WHERE "mens_singles"='Philippe Aulner';

Question: How many mixed doubles were won in 1996?
SQL: SELECT COUNT("mixed_doubles") FROM "past_winners" WHERE "year"=1996;