What is the average yards for Jimmie Giles in a game larger than 15 and reception larger than 2?
CREATE TABLE "receiving" (
  "player" text,
  "games" real,
  "reception" real,
  "yards" real,
  "long" real
);
SELECT AVG("yards") FROM "receiving" WHERE "games">15 AND "reception">2 AND "player"='jimmie giles';