_:b1 <http://a.example/p1> _:b2 . _:b2 <http://a.example/p2> <http://a.example/o2> . _:b1 <http://a.example/p> <http://a.example/o> . _:b3 <http://a.example/p1> _:b4 <http://example/graph> . _:b4 <http://a.example/p2> <http://a.example/o2> <http://example/graph> . _:b3 <http://a.example/p> <http://a.example/o> <http://example/graph> .