PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Likewise, there exists a need whereby an independent third party can verify the message content, including attachments, of an electronic message in the event of dispute resolution. [0017] Another problem with conventional method of email prioritization systems is that none of the prior art discloses a method, system or process for tracking the time and date an email was sent that is user friendly.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com