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