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