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