@prefix dc10:  <http://purl.org/dc/elements/1.0/> .
@prefix dc11:  <http://purl.org/dc/elements/1.1/> .

_:a  dc10:title     "SPARQL Query Language Tutorial" .

_:b  dc11:title     "SPARQL Query Language (2nd ed)" .

_:c  dc10:title     "SPARQL" .
_:c  dc11:title     "SPARQL" .