Bob is red. Bob is kind. Bob is cold. Bob is blue. Dave is red. Dave is big. Eric is round. Eric is nice. Eric is green. Eric is cold. Harry is rough. If someone is blue and round and young then they are green. If someone is young and big then they are cold. If someone is red and green and round then they are young. If someone is nice and big and kind then they are young. If someone is big then they are blue. If someone is blue and big then they are rough. If someone is rough and blue then they are young.
Dave is young.