What position did Lee Gilmour play while having more than 4 Tries and 20 points?
CREATE TABLE "2003_squad_statistics" (
  "player" text,
  "position" text,
  "tries" real,
  "goals" real,
  "points" real
);
SELECT "position" FROM "2003_squad_statistics" WHERE "tries">4 AND "points"=20 AND "player"='lee gilmour';