About: http://webisa.webdatacommons.org/397305300

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http://www.w3.org/ns/prov#value	There is a lot of stuff left unpublished or under-published, e.g. most of the letters (the published volumes contain some random? sample).
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com