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