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