About: http://webisa.webdatacommons.org/120382790

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 believe the CacheService.instance will load the CacheService that will trigger an exception if there is a problem, not set the instance to null.
http://www.w3.org/ns/prov#wasQuotedFrom	apache.org