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