gonum.org/v1/gonum@v0.14.0/graph/formats/rdf/testdata/test010-urdna2015.nq (about)

     1  <http://example.org/test#example> <http://example.org/vocab#validFrom> "2011-01-25T00:00:00+00:00"^^<http://www.w3.org/2001/XMLSchema#dateTime> .