PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Q: My son, now almost seven, has been reading since the age of two-and-a-half and doing math such as three-digit addition, subtraction, and multiplication since the age of four.
http://www.w3.org/ns/prov#wasQuotedFrom
  • familyeducation.com