CREATE TABLE "mixed_doubles" (
  "tournament" text,
  "1989" text,
  "1990" text,
  "1991" text,
  "1992" text,
  "1993" text,
  "1994" text,
  "1995" text,
  "1996" text,
  "1997" text,
  "career_w_l" text
);

Question: Which 1997's accompanying 1991 was a when the tournament was the australian open?
SQL: SELECT "1997" FROM "mixed_doubles" WHERE "1991"='a' AND "tournament"='australian open';

Question: Which 1997's 1992 was 1r when 1994 was a?
SQL: SELECT "1997" FROM "mixed_doubles" WHERE "1992"='1r' AND "1994"='a';

Question: Which 1995's tournament was the French Open?
SQL: SELECT "1995" FROM "mixed_doubles" WHERE "tournament"='french open';

Question: Which 1989's 1991 and 1994 stats were 1r?
SQL: SELECT "1989" FROM "mixed_doubles" WHERE "1991"='1r' AND "1994"='1r';

Question: Which 1990s 1992 was 3r?
SQL: SELECT "1990" FROM "mixed_doubles" WHERE "1992"='3r';