What is the smallest drawn when the points are less than 7 and the against greater than 31?
CREATE TABLE "apea_s_campeonato_paulista" (
  "position" real,
  "team" text,
  "points" real,
  "played" real,
  "drawn" real,
  "lost" real,
  "against" real,
  "difference" text
);
SELECT MIN("drawn") FROM "apea_s_campeonato_paulista" WHERE "points"<7 AND "against">31;