<http://schema.org/interactionType>
"http://schema.org/ShareAction"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/microsoft/2012/11/20/im-gandalf-and-this-is-my-windows-phone-microsoft-taps-the-hobbit-characters-for-new-ad-campaign/39/>