About: http://webisa.webdatacommons.org/235239286

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	It and the following book, ROBOTS AND EMPIRE, link the first two robot books with the Empire series and leads up to Foundation.There are a couple of points easy to miss here.
http://www.w3.org/ns/prov#wasQuotedFrom	amazon.ca