<http://schema.org/description>
"Facebook has a material interest in keeping its userbase between the ages of 13 and 18 engaged with its service, as they not only constitute a marketable demographic, but also represent ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/facebook/2012/09/29/facebook-claims-proposed-privacy-rules-minors-violate-first-amendment/>