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