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