static public INode PartToRdf(Part part, RdfRules triples)
{
if (part is Atom)
{
Atom atom = ((Atom)part);
var rdf = atom.AsRDFNode();
if (rdf != null)
{
return(rdf);
}
Warn("Atom.AsValuedNode returned NULL" + part);
}
if (part is Variable)
{
var definations = triples.def;
return(definations.CreateVariableNode(((Variable)part).vname));
}
if (part is Term)
{
return(TermToRdf(part, triples));
}
throw ErrorBadOp("ToRDF on " + part);
}