About: http://webisa.webdatacommons.org/413057862

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	He makes dozens of fascinating observations - the book is an easy read, BTW - but for our purposes three main ones stand out.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com