What is the number of runner up when the winner of women is norway and third is sweden?
CREATE TABLE "nations_cup" (
  "season" text,
  "winner" text,
  "runner_up" text,
  "third" text,
  "winner_men" text,
  "winner_women" text
);
SELECT COUNT("runner_up") FROM "nations_cup" WHERE "winner_women"='Norway' AND "third"='Sweden';