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