About: http://webisa.webdatacommons.org/440129262

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 core of this system is an event-driven Web Worker, which responds to events dispatched from documents and other sources.
http://www.w3.org/ns/prov#wasQuotedFrom	w3.org