what is the country for the 1972 winter olympics?
CREATE TABLE "women_s_10_km" (
  "winner" text,
  "country" text,
  "winter_olympics" real,
  "fis_nordic_world_ski_championships" text,
  "holmenkollen" text
);
SELECT "country" FROM "women_s_10_km" WHERE "winter_olympics"=1972;