About: http://webisa.webdatacommons.org/313807257

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	Only if you download the images, which few email clients do by default now, including Mail.app, which is what we are discussing here, and Outlook, Windows Mail, Gmail, Live Mail, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	osnews.com