About: http://webisa.webdatacommons.org/227732013

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	If the e-mail is marked with an option other than Normal, such as Private, Personal or Confidential, it will be deleted.There is a very old whitepaper that discusses this (Navision40_IntegrationwithOutlook_Technic.doc).
http://www.w3.org/ns/prov#wasQuotedFrom	msdn.com