. _:vb50820618 . . . "RDFa API" . _:vb50820618 . _:vb50820617 "Benjamin Adrian" . _:vb50820616 "Manu Sporny" . . _:vb50820618 . _:vb50820616 . _:vb50820617 . _:vb50820617 . "2012-07-05" . _:vb50820616 . .