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