<http://schema.org/description>
"If you have got a PowerPoint or PDF presentation that you want to share with everyone else, or even if you just want to quickly make one with a bunch of images, ZURB\u2019s new lightweight ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2011/09/01/web-app-reel-lets-you-embed-your-presentations-on-your-website/>