About: http://webisa.webdatacommons.org/81001528

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	Could the reason be that a book is a very physical thing and even though I did not understand the content, I could always grab one and read the preface or about the animal on the cover.
http://www.w3.org/ns/prov#wasQuotedFrom	josetteorama.com