<http://webisa.webdatacommons.org/prov/449428746>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/351844583> .
<http://webisa.webdatacommons.org/351844583>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<sme.org> .
<http://webisa.webdatacommons.org/351844583>	<http://www.w3.org/ns/prov#value>	"Denic goes on to say that the system required a lot of maintenance, as well as, the dirty oil caused significant wear and tear on the machines and disposal of the sludge and debris was a problem." .
<http://webisa.webdatacommons.org/351844583>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/435333880>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/351844583> .
<http://webisa.webdatacommons.org/prov/345747335>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/351844583> .