{[ <http://a.example/p> <http://a.example/o> ] .}
<http://example/graph> {[ <http://a.example/p> <http://a.example/o> ] .}
{[ <http://a.example/p> <http://a.example/o> ] .}
<http://example/graph> {[ <http://a.example/p> <http://a.example/o> ] .}