PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Ultrasound or ultrasonography is a medical imaging technique that uses high frequency sound waves in the range of 1 to 5 megahertz, and their echoes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es