About: http://webisa.webdatacommons.org/445201504

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	So, smart pointers are a great thing, but still, you should use them if you need them, and not just instead of pointers everywhere, he is what you have references for.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com