anchor.diff:                  }
               ]
       end;
  +edge_to_triples(_Edge, <<"http://purl.org/dc/elements/1.1/subject">>, Subject, Object, Context) ->
  +    with_title(
  +        [
  +            #triple{
  +                type = resource,
  +                predicate = rdf_property:schema(<<"about">>),
  +                subject = m_rsc:p(Subject, uri, Context),
  +                object = m_rsc:p(Object, uri, Context)
  +            }
  +        ],
  +        Object,
  +        Context
  +    );
   
   edge_to_triples(_Edge, _Uri, _Subject, _Object, _Context) ->
       %% Ignore all other edges.
  
positive.code:     [
          #triple{
              predicate = rdf_property:schema(<<"startDate">>),
              object = #rdf_value{value = Value}
          }
      ];
  property_to_triples({date_end, Value}, _Properties, _Context) ->
      [
          #triple{
              predicate = rdf_property:schema(<<"endDate">>),
              object = #rdf_value{value = Value}
          }
      ];
  property_to_triples({license, Value}, _Properties, _Context) ->
  
negative.code:     ];
  property_to_triples({subtitle, Value}, _Properties, Context) ->
      m_rdf_export:translations_to_rdf(rdf_property:schema(<<"alternateName">>), Value, Context);
  property_to_triples({summary, Value}, _Props, Context) ->
      m_rdf_export:translations_to_rdf(rdf_property:schema(<<"description">>), Value, Context);
  property_to_triples({title, Value}, _Properties, Context) ->
      m_rdf_export:translations_to_rdf(rdf_property:schema(<<"name">>), Value, Context);
  property_to_triples({website, Value}, _Properties, _Context) ->
  