<http://webisa.webdatacommons.org/prov/57578156>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/117077666> .
<http://webisa.webdatacommons.org/117077666>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<blogspot.com> .
<http://webisa.webdatacommons.org/117077666>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/117077666>	<http://www.w3.org/ns/prov#value>	"The chlorine or other chemicals used to keep the water clean." .