About: http://webisa.webdatacommons.org/251400612

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	Clearly this quartet, as well as the others, is a work of his maturity.
http://www.w3.org/ns/prov#wasQuotedFrom	editionsilvertrust.com