Dave is young. Dave is round. Dave is green. Dave is blue. Eric is round. Eric is kind. Eric is cold. Eric is blue. Fred is cold. If someone is round and nice and cold then they are rough. If someone is nice and blue and rough then they are young. If someone is nice and young and red then they are blue. If someone is nice and blue and green then they are rough. If someone is blue and round then they are nice. If someone is green and nice and red then they are cold.
Dave is not rough.