About: http://webisa.webdatacommons.org/274969358

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	A change of state of some external event, such as data now being available for reading on a file descriptor, time having passed or simply not having any other events happening anymore.
http://www.w3.org/ns/prov#wasQuotedFrom	metacpan.org