gonum.org/v1/gonum@v0.14.0/graph/formats/rdf/testdata/hogan17_4.5_g-in.nq (about) 1 <ex:p> <ex:q> _:a . 2 <ex:p> <ex:q> _:b . 3 <ex:s> <ex:p> _:a . 4 <ex:s> <ex:r> _:c . 5 _:c <ex:p> _:b .