About: http://webisa.webdatacommons.org/368536017

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	It includes royalty and copyright materials for well-known Gershwin shows and films, most notably Porgy and Bess.
http://www.w3.org/ns/prov#wasQuotedFrom	loc.gov