About: http://webisa.webdatacommons.org/172598412

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	Otherwise, 1 is returned if the file is not found, or undef is returned if there was an error generating it or some other nested include file.
http://www.w3.org/ns/prov#wasQuotedFrom	cpan.org