About: http://webisa.webdatacommons.org/289006009

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	I learned the the ??? character is used to indicate the following text is a symbol and not to be evaluated.
http://www.w3.org/ns/prov#wasQuotedFrom	scottmuc.com