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