PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The agency's Instagram profile complements NASA's strong social media presence on Twitter, Facebook, Google+, YouTube, Flickr, Foursquare, Reddit and other sites.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newsfactor.com