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