<http://schema.org/interactionType>
"http://schema.org/ShareAction"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/microsoft/2012/07/25/microsofts-build-2012-developer-conference-kicks-off-october-30-1-week-after-windows-8-goes-on-sale/>