<http://webisa.webdatacommons.org/23861491>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<usgs.gov> .
<http://webisa.webdatacommons.org/prov/338186870>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/23861491> .
<http://webisa.webdatacommons.org/23861491>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/23861491>	<http://www.w3.org/ns/prov#value>	"As a result, stresses are increasing on fragile desert surfaces and on water supplies in an area where water is a precious commodity." .