About: http://webisa.webdatacommons.org/391948746

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	Trouble is, it is apparently not obvious from the example code how one would query for specific columns, aggregates or other expressions using said query property.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com