$VAR1 = {
          'goo' => {
                     'tab' => {
                                'bird' => 2
                              }
                   },
          'foo' => {
                     'bar' => {
                                'bat' => 5,
                                'bird' => 2
                              }
                   }
        };
$VAR1 = [
          'goo',
          'tab',
          'bird',
          2
        ];
$VAR2 = [
          'foo',
          'bar',
          'bat',
          5
        ];
$VAR3 = [
          'foo',
          'bar',
          'bird',
          2
        ];