@prefix rdf: . @prefix nif: . _:vb831438 rdf:first nif:referenceContext ; rdf:rest _:vb831439 . @prefix pwdr: . @prefix ns3: . _:vb831438 pwdr:describedby ns3:nif-core . _:vb831439 rdf:first nif:beginIndex ; rdf:rest _:vb831440 ; pwdr:describedby ns3:nif-core . _:vb831440 rdf:first nif:endIndex ; rdf:rest rdf:nil ; pwdr:describedby ns3:nif-core .