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