Dave is green. Dave is kind. Dave is young. Erin is cold. Erin is green. Erin is nice. Gary is blue. Gary is green. Gary is kind. Gary is young. All kind, green things are blue. All nice things are blue. All green, cold things are young. If something is nice then it is green. If something is kind then it is nice. If something is round and young then it is cold. All young things are blue. If something is blue and nice then it is round.
Erin is young.