<http://webisa.webdatacommons.org/prov/173908946>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/184406161> .
<http://webisa.webdatacommons.org/184406161>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/382087293>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/184406161> .
<http://webisa.webdatacommons.org/prov/149701379>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/184406161> .
<http://webisa.webdatacommons.org/184406161>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<toledoblade.com> .
<http://webisa.webdatacommons.org/184406161>	<http://www.w3.org/ns/prov#value>	"Acidic rainwater slowly melts away soft rock such as limestone or salt or dolomite." .