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