About: http://webisa.webdatacommons.org/360455757

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	A callback is a class which stores both a class instance and a method function pointer which is initiated on a call to the base class virtual call method using the signature designed into the callback.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com