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