About: http://webisa.webdatacommons.org/261382202

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	So when I found out that O'Reilly books come DRM-free and include multiple formats such as PDF, I have made an effort to always purchase the books directly from O'Reilly.
http://www.w3.org/ns/prov#wasQuotedFrom	twit.tv