About: http://webisa.webdatacommons.org/50573395

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	this via reference variables, except by calling a function and passing *r to a ref S parameter.
http://www.w3.org/ns/prov#wasQuotedFrom	digitalmars.com