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