_:vb50819359	<http://www.w3.org/2000/10/swap/pim/contact#homePage>	<https://www.w3.org/QA/WG/> .
_:vb50819359	<http://www.w3.org/2007/05/powder-s#describedby>	<http://demo.openlinksw.com/about/id/entity/http/www.w3.org/2002/01/tr-automation/tr.rdf> .