CREATE TABLE "victories_by_nationality" (
  "country" text,
  "mens_open" real,
  "womens_open" real,
  "mens_wheelchair" real,
  "womens_wheelchair" real,
  "total" real
);

Question: How many are the total winners if 7 won the Men's Open?
SQL: SELECT "total" FROM "victories_by_nationality" WHERE "mens_open"=7;

Question: How many won the Men's Open if the players are from Sweden?
SQL: SELECT COUNT("mens_open") FROM "victories_by_nationality" WHERE "country"='Sweden';

Question: How many are the total winners from South Korea?
SQL: SELECT "total" FROM "victories_by_nationality" WHERE "country"='South Korea';