About: http://webisa.webdatacommons.org/456150130

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	Observered that function pointer to implement callback takes in void *, which indicates that it can takes in any type of variable including structure.
http://www.w3.org/ns/prov#wasQuotedFrom	byexamples.com