_:vb50857804	<http://www.w3.org/2007/05/powder-s#describedby>	<http://linkeddata.uriburner.com:28898/about/id/entity/http/www.w3.org/ns/prov> .
_:vb50857805	<http://www.w3.org/2002/07/owl#unionOf>	_:vb50857804 .
_:vb50857804	<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>	_:vb50857806 .
_:vb50857804	<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>	<http://www.w3.org/ns/prov#Activity> .
<http://www.w3.org/ns/prov>	<http://xmlns.com/foaf/0.1/topic>	_:vb50857804 .