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