About: http://webisa.webdatacommons.org/168619488

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	Fix: First pass problem is a code bug - not sure if this would have shown up in gcc 3.x if Valve didn't use the horribly evil -w option, but it certainly looks like invalid code to reference a friend function without a declaration.
http://www.w3.org/ns/prov#wasQuotedFrom	valvesoftware.com