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