About: http://webisa.webdatacommons.org/222737342

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	Backed by ads as well as donations by Google and the Bill and Melinda Gates Foundation, the not-for-profit Khan Academy offers over 3,300 short instructional videos on basic math, biology, chemistry, physics and other subjects.
http://www.w3.org/ns/prov#wasQuotedFrom	pcadvisor.co.uk