Dave is huge. Dave is big. Anne is thin. Anne is little. Gary is quiet. Erin is poor. Erin is rough. If someone is not high then they are poor. If someone is not sad then they are nice. If someone is quiet then they are kind. If someone is kind and not dull then they are smart. If someone is poor and not high then they are bad. If someone is thin and little then they are dull. If someone is dull and not kind then they are rough. All nice people are wealthy. 
Gary is not smart.