About: http://webisa.webdatacommons.org/41673375

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In this way, the surface defects of a cylindrical object are divided into at least three types including a chip, an underground part or metal inclusion, and a crack or a pit for the purpose of detection.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com