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