Charlie is huge. Charlie is high. Dave is small. Dave is thin. Gary is quiet. Bob is bad. Bob is poor. If someone is not strong then they are bad. If someone is not dull then they are nice. If someone is quiet then they are kind. If someone is kind and not sad then they are wealthy. If someone is bad and not strong then they are rough. If someone is small and thin then they are sad. If someone is sad and not kind then they are poor. All nice people are smart. 
Bob is smart.