About: http://webisa.webdatacommons.org/307573222

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	The safest route IMHO is to use the Thunderbird native .eml file format, which as far as possible stores your messages verbatim, including attachments.
http://www.w3.org/ns/prov#wasQuotedFrom	mozilla.org