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