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