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