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