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