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