About: http://webisa.webdatacommons.org/6712697

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 addition to being a surgical screw, such as spinal surgical screw 10, the medical device may be a spinal post 17, as illustrated in FIG. 6, or a spinal rod 18, as illustrated in FIG. 7.
http://www.w3.org/ns/prov#wasQuotedFrom	google.se