notation 3 extensions for RDF::Trine

 Resource Description Framework (RDF) is a standard model for data
 interchange on the Web.
 .
 RDF::TriN3 extends RDF::Trine in three ways:
 .
  * Adds a Notation 3 parser.
  * Adds a Notation 3 serializer.
  * Provides a subclass of literals to represent Notation 3 formulae.
 .
 In addition, a parser is provided for Notation 3 extended with
 ShorthandRDF notation - <http://esw.w3.org/ShorthandRDF>.