CREATE TABLE "winners" (
  "year" real,
  "men_s_singles" text,
  "women_s_singles" text,
  "men_s_doubles" text,
  "women_s_doubles" text,
  "mixed_doubles" text
);

Question: Who won the men's doubles the year Pernille Nedergaard won the women's singles?
SQL: SELECT "men_s_doubles" FROM "winners" WHERE "women_s_singles"='pernille nedergaard';