About: http://webisa.webdatacommons.org/353307265

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	(A caveat: many of these platforms have functionality other than recommending books, such as social networking.
http://www.w3.org/ns/prov#wasQuotedFrom	digitalbookworld.com