PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ribed herein, the natural or artificial facet joint spacer or inter-facet spacer 2310 also can be made of a flexible, biocompatible material, such as PEEK, to maintain joint mobility and flexibility.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com