_:vb917920 _:vb917921 . _:vb917920 . _:vb917920 "http://www.w3.org/TR/2013/REC-prov-dm-20130430/#term-influence" . _:vb917920 . _:vb917920 "influencee: an identifier (o2) for an entity, activity, or agent; " . _:vb917920 .