About: http://webisa.webdatacommons.org/291756000

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	You may have noticed that the book's id property is a String, this is to accommodate MongoDB's ObjectId type which is a 12-byte binary value represented as a hex string.
http://www.w3.org/ns/prov#wasQuotedFrom	infoq.com