What position was played with a Difference of - 5, and a Played larger than 14?
CREATE TABLE "campeonato_brasileiro_s_rie_c" (
  "position" real,
  "team" text,
  "points" real,
  "played" real,
  "drawn" real,
  "lost" real,
  "against" real,
  "difference" text
);
SELECT AVG("position") FROM "campeonato_brasileiro_s_rie_c" WHERE "difference"='- 5' AND "played">14;