About: http://webisa.webdatacommons.org/40757424

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	Includes In, Out, and Trash mailboxes, but the three types of boxes are not identified and separated.
http://www.w3.org/ns/prov#wasQuotedFrom	cdlib.org