About: http://webisa.webdatacommons.org/214549546

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	When did producers such as Thirteen and WGBH begin producing programs in digital formats for distribution by PBS?
http://www.w3.org/ns/prov#wasQuotedFrom	digitalpreservation.gov