PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This convention is a little hairy for forms that may have zero, one, or many checkboxes checked, as the handler needs to check whether the form value is a string or an array of strings, but it would work and PHP has tools for doing that. ... (comp.lang.php)
http://www.w3.org/ns/prov#wasQuotedFrom
  • derkeiler.com