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