PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The National Labor Relations Board (NLRB) is closely monitoring company policies on social media, especially policies that discipline or terminate employees because they talk negatively to each other about an employer or a supervisor on social media such as Facebook or Twitter.
http://www.w3.org/ns/prov#wasQuotedFrom
  • firestorm.com