PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The study, which had a margin of error of plus or minus 2.5 percentage points and accounted for differences because of age, education and other factors, also found that people now tend to use cell phones more than landlines to stay in touch with closest family and friends.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org