About: http://webisa.webdatacommons.org/284917315

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	At runtime, what you do with an Either value is test whether it is a Left or Right, and then extract the value of the corresponding type from it.
http://www.w3.org/ns/prov#wasQuotedFrom	inimino.org