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

Question: Which Men's singles has a Mixed doubles of kai abraham petra michalowsky?
SQL: SELECT "men_s_singles" FROM "previous_winners" WHERE "mixed_doubles"='kai abraham petra michalowsky';

Question: Which women's doubles has a Year of 1992?
SQL: SELECT "women_s_doubles" FROM "previous_winners" WHERE "year"='1992';

Question: Which year has a Men's doubles of marcus ellis peter mills?
SQL: SELECT "year" FROM "previous_winners" WHERE "men_s_doubles"='marcus ellis peter mills';