About: http://webisa.webdatacommons.org/104133257

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	Some of these cite dates, but not a specific speech, publication or other source.
http://www.w3.org/ns/prov#wasQuotedFrom	wikiquote.org