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