Bob is high. Bob is huge. Fiona is small. Fiona is thin. Dave is wealthy. Alan is dull. Alan is poor. If someone is not strong then they are dull. If someone is not bad then they are smart. If someone is wealthy then they are kind. If someone is kind and not sad then they are quiet. If someone is dull and not strong then they are rough. If someone is small and thin then they are sad. If someone is sad and not kind then they are poor. All smart people are nice. 
Bob is not rough.