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