What is the captaincy for Defender that has less than 212 appearances and 12 goals?
CREATE TABLE "list_of_players" (
  "nationality" text,
  "position_a" text,
  "milan_career" text,
  "captaincy" text,
  "appearances" real,
  "goals" real
);
SELECT "captaincy" FROM "list_of_players" WHERE "appearances"<212 AND "goals"=12 AND "position_a"='defender';