<http://webisa.webdatacommons.org/prov/320250237>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/374490916> .
<http://webisa.webdatacommons.org/374490916>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/374490916>	<http://www.w3.org/ns/prov#value>	"Examples of known dewatering and other operations are given in U.S. Pat. No. 5,656,132, issued on Aug. 12, 1997 to Farrington et al." .
<http://webisa.webdatacommons.org/374490916>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com.au> .