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