<http://webisa.webdatacommons.org/217564384>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/79843859>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/217564384> .
<http://webisa.webdatacommons.org/217564384>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<azlibrary.gov> .
<http://webisa.webdatacommons.org/217564384>	<http://www.w3.org/ns/prov#value>	"USTs in Arizona were installed at least 20 years ago, including 13 percent" .