Dave is quiet. Erin is quiet. Erin is red. Gary is round. Gary is smart. Harry is blue. Harry is green. Cold, red things are blue. If something is quiet and round then it is smart. Quiet things are blue. All smart, blue things are red. If something is red then it is cold. If Harry is green then Harry is cold. If something is blue and quiet then it is round. If Erin is smart then Erin is blue.
Erin is round.