<http://webisa.webdatacommons.org/103667556>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/103667556>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<readbag.com> .
<http://webisa.webdatacommons.org/prov/185000021>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/103667556> .
<http://webisa.webdatacommons.org/103667556>	<http://www.w3.org/ns/prov#value>	"no new mines are going to be built, yet the best mines will have to deepen the shafts, hoisting velocity, conveyance capacity and other hosting parameters" .