$VAR1 = {
          'sets' => [
                      {
                        'cond' => {
                                    'cv.name' => [
                                                   'sequence',
                                                   'relationship',
                                                   'cvterm_property_type',
                                                   'chado_properties',
                                                   'genome_properties',
                                                   'annotation_properties',
                                                   'feature_property'
                                                 ]
                                  },
                        'quantity' => 'all',
                        'class' => 'Cv::Cvterm',
                        'fetch' => [
                                     {
                                       'rel' => 'dbxref',
                                       'quantity' => 'all'
                                     },
                                     {
                                       'rel' => 'cvterm_dbxrefs',
                                       'quantity' => 'all',
                                       'fetch' => [
                                                    {
                                                      'rel' => 'dbxref',
                                                      'quantity' => 'all'
                                                    }
                                                  ]
                                     }
                                   ],
                        'join' => [
                                    'cv'
                                  ]
                      }
                    ],
          'might_have' => {
                            'fetch' => 0
                          },
          'belongs_to' => {
                            'fetch' => 0
                          },
          'has_many' => {
                          'fetch' => 0
                        }
        };
