About: http://webisa.webdatacommons.org/384553523

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	At today???s WWDC keynote event, Apple unveiled the next major version of the Mac operating system, Mavericks, which offers over 200 new features including Finder and Safari enhancements and new iBooks and Maps apps.
http://www.w3.org/ns/prov#wasQuotedFrom	appshopper.com