PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Twelve new speech objects give developers instant access to language-independent recognition of yes/no responses, which can include 50 variations, such as yep, OK, uh-huh and the like, and other basic terms such as numbers, dates and times.
http://www.w3.org/ns/prov#wasQuotedFrom
  • eetimes.com