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