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

Question: Name the womens doubles when mens doubles is charalambos kazilas stepan partemian
SQL: SELECT "womens_doubles" FROM "past_winners" WHERE "mens_doubles"='Charalambos Kazilas Stepan Partemian';

Question: Name the womens doubles when mixed doubles is potten ruth scott
SQL: SELECT "womens_doubles" FROM "past_winners" WHERE "mixed_doubles"='Potten Ruth Scott';

Question: Name the mens singles when mens doubles is george georgoudis gerostergiou
SQL: SELECT "mens_singles" FROM "past_winners" WHERE "mens_doubles"='George Georgoudis Gerostergiou';

Question: Name the womens doubles when mens doubles is theodoros velkos giorgos patis
SQL: SELECT "womens_doubles" FROM "past_winners" WHERE "mens_doubles"='Theodoros Velkos Giorgos Patis';