About: http://webisa.webdatacommons.org/278181219

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	If the tag is a control field, undef is returned and $MARC::Field::ERROR is set.
http://www.w3.org/ns/prov#wasQuotedFrom	cpan.org