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