CREATE TABLE "21st_century" (
  "year" real,
  "mens_singles" text,
  "womens_singles" text,
  "mens_doubles" text,
  "womens_doubles" text,
  "mixed_doubles" text
);

Question: Name the men's singles of marina yakusheva elena shimko
SQL: SELECT "mens_singles" FROM "21st_century" WHERE "womens_doubles"='Marina Yakusheva Elena Shimko';

Question: What are the womens singles of imam sodikin irawan andi tandaputra?
SQL: SELECT "womens_singles" FROM "21st_century" WHERE "mens_doubles"='Imam Sodikin Irawan Andi Tandaputra';

Question: What are the womens singles of naoko fukuman kurumi yonao?
SQL: SELECT "womens_singles" FROM "21st_century" WHERE "womens_doubles"='Naoko Fukuman Kurumi Yonao';

Question: What is the womens singles of marcus ellis gabrielle white?
SQL: SELECT "womens_singles" FROM "21st_century" WHERE "mixed_doubles"='Marcus Ellis Gabrielle White';

Question: What is the mens singles of 2008?
SQL: SELECT "mens_singles" FROM "21st_century" WHERE "year"=2008;