What is the average against that has a drawn less than 7, points greater than 22, and 19 for the played?
CREATE TABLE "laf_s_campeonato_paulista" (
  "position" real,
  "team" text,
  "points" real,
  "played" real,
  "drawn" real,
  "lost" real,
  "against" real,
  "difference" text
);
SELECT AVG("against") FROM "laf_s_campeonato_paulista" WHERE "drawn"<7 AND "points">22 AND "played"=19;