_:vb50857853 _:vb50857860 . _:vb50857860 . _:vb50857860 _:vb50857861 . _:vb50857858 "influencer: an identifier (o1) for an ancestor entity, activity, or agent that the former depends on;" . _:vb50857858 . _:vb50857853 . _:vb50857858 . _:vb50857861 . _:vb50857861 . _:vb50857858 _:vb50857859 . _:vb50857861 . _:vb50857860 . _:vb50857859 . _:vb50857858 . _:vb50857853 . _:vb50857858 "http://www.w3.org/TR/2013/REC-prov-dm-20130430/#term-influence" . _:vb50857858 . _:vb50857859 . _:vb50857859 _:vb50857853 .