About: http://webisa.webdatacommons.org/23567172

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	It seems to me that this thing is mostly a matter of interviewing the people who were involved, and reviewing the paper trail of what happened.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com