PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The lenticule 22 may be made of any of a variety of suitable materials, includinq polymethyl methacrylate (PMMA), polycarbonates, HEMA, polysulfones, silicones and other substances that are biologically acceptable, not introducinq harmful foreign substances into the eye.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com