About: http://webisa.webdatacommons.org/230476276

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	The multimedia files include text documents, portable document files, PowerPoint??? presentations, audio files, video files, voice narrated graphics, and other types of files.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com