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