Charlie is big. Charlie is high. Dave is little. Dave is small. Bob is smart. Gary is rough. Gary is poor. If someone is not huge then they are rough. If someone is not bad then they are wealthy. If someone is smart then they are clever. If someone is clever and not sad then they are quiet. If someone is rough and not huge then they are dull. All dull people are short. If someone is little and small then they are sad. If someone is sad and not clever then they are poor. If someone is poor then they are young. If someone is wealthy then they are nice. All nice people are kind. All quiet people are old. 
Bob is not old.