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