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<http://webisa.webdatacommons.org/262777168>	<http://www.w3.org/ns/prov#value>	"The word tar to describe these natural bitumen deposits is really a misnomer, since, chemically speaking, tar is a man-made substance produced by the destructive distillation of organic material, usually coal." .
<http://webisa.webdatacommons.org/262777168>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<reference.com> .
<http://webisa.webdatacommons.org/prov/263490163>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/262777168> .