About: http://webisa.webdatacommons.org/366086962

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	PDF support is built-in to major operating systems, including OS/X and iOS, Microsoft Office, and thousands of other software programs.
http://www.w3.org/ns/prov#wasQuotedFrom	oreilly.com