PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In addition to the microbubbles, the contrast agent of the invention will contain surfactants stabilizing the microbubble evanescent gas/liquid envelope, and optionally, hydrophilic agents and other additives.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com