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