 Preferential would be like first class mail, the letter that you send to grandma, your bills, things like that. Non-preferential is like standard mail, nonprofit mail, things like catalogs, solicitations, stuff like that. And we have different handling procedures for those two types of mail if it's undeliverable. So the non-preferential mail, maybe some of you will get some satisfaction out of this. Like if those weekly ads aren't deliverable, they go into this big recycling bin and then they get sent to the industrial shredder.