CREATE TABLE "swedish_open" (
  "year_location" text,
  "mens_singles" text,
  "womens_singles" text,
  "mens_doubles" text,
  "womens_doubles" text
);

Question: What is the place and when was the year when the women's doubles womens were Bai yang Niu Jianfeng?
SQL: SELECT "year_location" FROM "swedish_open" WHERE "womens_doubles"='Bai Yang Niu Jianfeng';

Question: How many times has Ma Long won the men's singles?
SQL: SELECT COUNT("mens_doubles") FROM "swedish_open" WHERE "mens_singles"='Ma Long';

Question: How many times has Sun Jin won the women's doubles?
SQL: SELECT COUNT("mens_doubles") FROM "swedish_open" WHERE "womens_singles"='Sun Jin';