Which Drawn has Points smaller than 46, and a Position smaller than 20, and a Lost smaller than 19, and an Against of 56?
CREATE TABLE "campeonato_brasileiro_s_rie_b" (
  "position" real,
  "team" text,
  "points" real,
  "played" real,
  "drawn" real,
  "lost" real,
  "against" real,
  "difference" text
);
SELECT "drawn" FROM "campeonato_brasileiro_s_rie_b" WHERE "points"<46 AND "position"<20 AND "lost"<19 AND "against"=56;