About: http://webisa.webdatacommons.org/209062213

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	The cavity may be produced by yet other means, for example using a laser or by mechanical abrasion.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com