About: http://webisa.webdatacommons.org/274809302

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	the epoch is a date and time to which time-dependent calculations are referred.
http://www.w3.org/ns/prov#wasQuotedFrom	cpan.org