Which Pick # has a Round larger than 5, and a Position of wide receiver, and a Name of gregory spann, and an Overall larger than 228?
CREATE TABLE "jacksonville_jaguars_draft_history" (
  "round" real,
  "pick_num" real,
  "overall" real,
  "name" text,
  "position" text,
  "college" text
);
SELECT AVG("pick_num") FROM "jacksonville_jaguars_draft_history" WHERE "round">5 AND "position"='wide receiver' AND "name"='gregory spann' AND "overall">228;