PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • And you can also use the rules feature within Outlook and other e-mail programs to filter messages as they come in, sending them to particular folders, which can allow you to prioritize particular types of messages.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org