About: http://webisa.webdatacommons.org/81998101

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 instead an object has a reference to the singleton object passed in, either via constructor or other method, then it does not matter how the singleton is actually created and the whole pattern turns out not to matter.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com