About: http://webisa.webdatacommons.org/278917959

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	If unit testing is an issue and you still want a singleton, consider using dependency injection.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com