Dave is not blue. Dave is nice. Dave is rough. Dave is not round. Gary is blue. Gary is green. Gary is nice. Gary is rough. Gary is not round. Gary is smart. Harry is not blue. Harry is cold. Harry is green. Harry is nice. Harry is round. Harry is smart. If someone is not blue and not cold then they are green. All rough people are smart. If someone is not green then they are not nice.
Dave is nice.