<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_environmental_and_conservation_organizations_in_the_United_States> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/2004/02/skos/core#altLabel>	"The PRB" .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Environmental_organization_based_in_Washington,_D.C.> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_global_sustainability_statistics> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://caligraph.org/ontology/type>	<http://caligraph.org/resource/Advocacy_group> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Population_concern_advocacy_groups> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_population_concern_organizations> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Population_research_organizations> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Environmental_and_conservation_organization_in_the_United_States> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Population_concern_advocacy_group> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/2002/07/owl#sameAs>	<http://dbpedia.org/resource/Population_Reference_Bureau> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/2004/02/skos/core#prefLabel>	"Population Reference Bureau" .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://caligraph.org/ontology/location>	<http://caligraph.org/resource/United_States> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/2004/02/skos/core#altLabel>	"PRB" .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Environmental_organizations_based_in_Washington,_D.C.> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Hewlett_Foundation> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/2000/01/rdf-schema#label>	"Population Reference Bureau" .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://caligraph.org/ontology/headquarter>	<http://caligraph.org/resource/Washington,_D.C.> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#NamedIndividual> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Global_sustainability_statistic> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Research_institute_established_in_1929> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Research_institutes_established_in_1929> .
<http://caligraph.org/resource/Population_Reference_Bureau>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Population_research_organization> .