PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Facebook, Google, Twitter, and other web companies did not distribute software, and so they were able to freely use both Apache-licensed and GPL-licensed software without bothering about contribution requirements.
http://www.w3.org/ns/prov#wasQuotedFrom
  • timreview.ca