What is the smallest amount of draws when the position is less than 7 and the against is 19?
CREATE TABLE "campeonato_brasileiro_s_rie_a" (
  "position" real,
  "team" text,
  "points" real,
  "played" real,
  "drawn" real,
  "lost" real,
  "against" real,
  "difference" text
);
SELECT MIN("drawn") FROM "campeonato_brasileiro_s_rie_a" WHERE "position"<7 AND "against"=19;