PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Stem cells are the source of all cells and tissue, including brain, blood, bones and muscle [GALLO/GETTY]
http://www.w3.org/ns/prov#wasQuotedFrom
  • aljazeera.com