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