text: define( [ 
      "backbone", 
      "corpus/Corpus" 
  ], function(
      Backbone,
      Corpus
  ) {
    var LessonCorpus = Corpus.extend(
    /** @lends LessonCorpus.prototype */
    {
      /**
       * @class A lesson corpus is a type of corpus. 
       * 
       * @extends Backbone.Model
       * 
       * @constructs
       * 
       */
      initialize : function(attributes) {
        Corpus.__super__.initialize.call(this, attributes);
  
      },
      
      internalModels : {
        // There are all the models of a corpus, plus some more
      },
      saveAndInterConnectInApp : function(callback){
        
        if(typeof callback == "function"){
          callback();
        }
      }
    });
  
    return LessonCorpus;
  }); 
  
  
  
  