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