Alan is round. Alan is red. Alan is blue. Dave is nice. Dave is green. Gary is rough. Gary is red. Gary is kind. Gary is big. Harry is rough. Harry is nice. Harry is big. If someone is red and young then they are green. If someone is young and blue and big then they are red. If someone is green and red then they are blue. If someone is kind and big then they are young. If someone is kind and green and round then they are young. If someone is blue then they are cold. If someone is round and rough then they are red.
Alan is not young.