_:vb919717	<http://www.w3.org/2002/07/owl#unionOf>	_:vb919721 .
_:vb919721	<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>	<http://www.w3.org/ns/prov#Delegation> .
_:vb919721	<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>	_:vb919720 .