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