About: http://webisa.webdatacommons.org/187456061

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	No requirements to join, other than the obvious one of having the book.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com