<http://www.w3.org/ns/prov#hadActivity>	<http://www.w3.org/2000/01/rdf-schema#domain>	_:vb50857810 .
_:vb50857810	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://www.w3.org/ns/prov>	<http://xmlns.com/foaf/0.1/topic>	_:vb50857810 .
_:vb50857810	<http://www.w3.org/2002/07/owl#unionOf>	_:vb50857809 .
_:vb50857810	<http://www.w3.org/2007/05/powder-s#describedby>	<http://linkeddata.uriburner.com:28898/about/id/entity/http/www.w3.org/ns/prov> .