<http://webisa.webdatacommons.org/prov/342029123>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/94660802> .
<http://webisa.webdatacommons.org/prov/340837008>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/94660802> .
<http://webisa.webdatacommons.org/94660802>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nepr.net> .
<http://webisa.webdatacommons.org/94660802>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/94660802>	<http://www.w3.org/ns/prov#value>	"When USGS scientists zeroed in on where they took place, they noticed clusters near waste-water wells, especially in Colorado and Oklahoma." .