PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The study discovered that signing 2-year-olds knew, on average, 50 words more than their non-signing peers and, by age 3, their language skills were a year ahead of where they were expected to be.
http://www.w3.org/ns/prov#wasQuotedFrom
  • education.com