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