PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Museums, libraries, and other cultural institutions have been particularly great about making online collections teachers can draw from for engaging, but appropriately limited, online research.
http://www.w3.org/ns/prov#wasQuotedFrom
  • coreknowledge.org