The lion is nice. The lion is red. The lion is rough. The lion is round. The lion is young. If someone is round then they are young. If someone is red then they are nice. If someone is not round then they are nice. All young, round people are nice. Rough people are nice. If the lion is nice and the lion is not round then the lion is rough. If the lion is not young then the lion is not red. If someone is not young then they are not rough.
The lion is not nice.