<http://webisa.webdatacommons.org/356392231>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/356392231>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/18364799>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/356392231> .
<http://webisa.webdatacommons.org/356392231>	<http://www.w3.org/ns/prov#value>	"According to one embodiment, the articular surface may be excised using a drill, rotating cutter, or other instrument for excising a generally circular region of the articular surface and/or subchondral bone as described in application Ser." .