About: http://webisa.webdatacommons.org/146250518

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	Somewhere on YouTube there is a video of him explaining a part of these exercises a few years ago, I will see if I can locate it and post it here.
http://www.w3.org/ns/prov#wasQuotedFrom	aikiweb.com