Solve language display problem in result playlist. problem was in the mirage serializer definition
<?php
namespace CorpusParole\Libraries\Mappers;
/**
* Map a rdf graph to one more graph(es).
*/
interface RdfMapper {
/**
* Map an Rdf Graph from one model to another
* @return the new mapped graph
*/
function mapGraph();
/**
* Get output graphes
* @return array
*/
function getOutputGraphes();
}