About: http://webisa.webdatacommons.org/126574427

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	Your code is a wild mixture of native C++ and C++/CLI. While this is possible, it is not recommended unless definitely necessary, and I do not see the necessity for that in your code.
http://www.w3.org/ns/prov#wasQuotedFrom	codeguru.com