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