About: http://webisa.webdatacommons.org/409410779

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	The birth of their children, Anne in 1919 and Michael in 1921, gradually helped to reduce the commitment of time, and the system began to reach a form of completion.
http://www.w3.org/ns/prov#wasQuotedFrom	yeatsvision.com