PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • But pediatric neuroscientists and researchers who have studied the effects of screen-time on children suggest the iPad is a different beast.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wsj.com