About: http://webisa.webdatacommons.org/238945028

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	Matching the data in them is a different story as you noted.All three files are CSV files exported from Outlook, JPilot, and Thunderbird respectively.I am sorry if I made things more confusing than necessary.
http://www.w3.org/ns/prov#wasQuotedFrom	linuxquestions.org