PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Facebook is also emerging as a popular site for online interaction with nearly 115,000 users of whom over 70 percent are between 18 and 34 years of age as of December 2011.[36] A government initiative in early 2011 urged all top government officials in Rwanda to sign up for and participate in social media networks such as Facebook and Twitter, which some believe is an effort to counter the growth
http://www.w3.org/ns/prov#wasQuotedFrom
  • refworld.org