PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • January 20, 2012 - by MarketingCharts staff By 2015, the dollar volume of goods sold through social media should rise sixfold, to $30 billion from $5 billion in 2011, according to [pdf] a Booz & Company estimate released in January 2012, which limited its estimate to hard goods such as electronics, apparel, and movie tickets.
http://www.w3.org/ns/prov#wasQuotedFrom
  • marketingcharts.com