About: http://webisa.webdatacommons.org/230661180

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	There is also a new version of iBooks, which allows people, including teachers and not just the big three textbook publishers, Cook pointed out, to author their own textbooks.
http://www.w3.org/ns/prov#wasQuotedFrom	typepad.com