About: http://webisa.webdatacommons.org/287193257

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	The same goes for a pointers to built-in types and arrays, but for classes and pointers to structs, assert(a) checks for null and then calls the class' invariant rather than just checking for null.
http://www.w3.org/ns/prov#wasQuotedFrom	digitalmars.com