<http://webisa.webdatacommons.org/prov/56978991>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/131673232> .
<http://webisa.webdatacommons.org/131673232>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/131673232>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<blogspot.com> .
<http://webisa.webdatacommons.org/131673232>	<http://www.w3.org/ns/prov#value>	"The material may be an external wrapping of paper, asbestos, and other materials or a flux covering.CRACK: A fracture type discontinuity characterized by a sharp tip and high ratio of length and width to opening displacement." .