<http://webisa.webdatacommons.org/120495838>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<pbs.org> .
<http://webisa.webdatacommons.org/120495838>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/15499479>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/120495838> .
<http://webisa.webdatacommons.org/120495838>	<http://www.w3.org/ns/prov#value>	"Includes links to such topics as astronomy, biology, ecology, geology," .