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