<http://schema.org/description>
"When you're in a store, how do you make sure you couldn't get a better deal online? Well, you could use an app such as Amazon's Price Check and save a few bucks. To make it even more ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/mobile/2011/12/06/amazon-offers-its-mobile-app-users-5-if-they-dont-buy-from-a-store/>