+Triples)Write an RDF/XML document to Stream from the list of Triples.
Stream must use one of the following Prolog stream encodings:
Characters that cannot be represented in the encoding are represented as
XML entities. Using ASCII is a good idea for documents that can be
represented almost completely in ASCII. For more international documents
using UTF-8 creates a more compact document that is easier to read.
rdf_write(File, Triples) :-
open(File, write, Out, [encoding(utf8)]),