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