About: http://webisa.webdatacommons.org/49985387

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 caught that, too, but I took it as an attempt to stay away from that issue, with the problems that have been raised here and other places, but at the same time note that there may be issues there that are not addressed in the paper.
http://www.w3.org/ns/prov#wasQuotedFrom	wattsupwiththat.com