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