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