About: http://webisa.webdatacommons.org/339614126

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	I saw this article http://www.html5rocks.com/en/tutorials/getusermedia/intro/, it explain about capturing audio and video from user device such as webcam and microphone.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com