Dave is strong. Dave is huge. Alan is short. Alan is small. Harry is smart. Bob is dull. Bob is sad. If someone is not big then they are dull. If someone is not bad then they are kind. If someone is smart then they are quiet. If someone is quiet and not rough then they are nice. If someone is dull and not big then they are poor. All poor people are tiny. If someone is short and small then they are rough. If someone is rough and not quiet then they are sad. If someone is sad then they are young. If someone is kind then they are wealthy. All wealthy people are clever. All nice people are old. 
Bob is clever.