PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • She had been frustrated with the private school's lack of concern about his lagging performance, particularly in math, and feared he was reaching a critical age when boys often do not catch up and become turned off to school.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ed.gov