About: http://webisa.webdatacommons.org/409573557

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	Things such as the Leave structure also should be specified to avoid any confusion
http://www.w3.org/ns/prov#wasQuotedFrom	letters.org