About: http://webisa.webdatacommons.org/425968142

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	These examples are limited, but the suggest that the problem is not with demand but a technical one.
http://www.w3.org/ns/prov#wasQuotedFrom	washingtonpost.com