About: http://webisa.webdatacommons.org/9398526

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	Another feature designed to assist with insertion of the prosthesis device are retention surfaces in the form of indentations positioned on the endplates, such as grooves, notches, cavities, channels, crevices, or other recesses.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au