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