PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Since then, entire schools and districts have joined in, using websites such as Skype and YouTube to keep students as young as kindergarten studying during storms.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org