Bob is big. Bob is strong. Harry is short. Harry is thin. Charlie is quiet. Alan is sad. Alan is bad. If someone is not high then they are sad. If someone is not poor then they are smart. If someone is quiet then they are wealthy. If someone is wealthy and not rough then they are kind. If someone is sad and not high then they are dull. If someone is short and thin then they are rough. If someone is rough and not wealthy then they are bad. All smart people are nice. 
Bob is dull.