About: http://webisa.webdatacommons.org/162197583

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	Let us now test the polymorphism, especially virtual vs. non-virtual (overriding methods).
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com