PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In addition to the ophthalmoscope a speculum device is often employed to separate the eyelids to provide the ophthalmologist with an unobstructed field to perform procedures such as cataract removal or lens transplants.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com