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