Erin is strong. Erin is huge. Bob is little. Bob is thin. Charlie is quiet. Fiona is rough. Fiona is sad. If someone is not high then they are rough. If someone is not bad then they are kind. If someone is quiet then they are wealthy. If someone is wealthy and not poor then they are smart. If someone is rough and not high then they are dull. If someone is little and thin then they are poor. If someone is poor and not wealthy then they are sad. All kind people are nice. 
Bob is not sad.