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