code: function () {
        var e = {
          type: 'literal',
          value: this.value.toString()
        };
        if (this.lang !== undefined) {
          e.lang = this.lang;
        } else if (this.datatype !== undefined) {
          e.datatype = this.datatype.toString();
        }
        return e;
      }
docs: end init 
  Returns a <a href="http://n2.talis.com/wiki/RDF_JSON_Specification">RDF/JSON</a> representation of this blank node.
  @returns {Object}