About: http://webisa.webdatacommons.org/370110012

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	the source is a sequence that contains Book objects if the publisher has books, and a sequence of exactly one Book object with Title = (no books) if the publisher has no books.
http://www.w3.org/ns/prov#wasQuotedFrom	manning.com