<http://schema.org/interactionType>
"http://schema.org/CommentAction"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2012/06/14/wander-unveils-its-invite-only-beta-as-a-beautiful-new-way-to-share-and-experience-the-world/>