==> Fetching [wheels]
$VAR1 = {
          'three' => 'tricycle',
          'one' => 'Unicycle',
          'two' => {
                     'pedals' => 'bicycle',
                     'motorized' => 'motorcycle'
                   },
          'four' => {
                      'car' => {
                                 'plain' => {
                                              'sporty' => 'honda',
                                              'retro' => 'volkswagon'
                                            },
                                 'fancy' => {
                                              'silver' => 'maserati',
                                              'red' => 'ferrari'
                                            }
                               },
                      'truck' => {
                                   'light' => {
                                                'chevy' => 'pickup'
                                              },
                                   'utility' => {
                                                  'city' => 'trash',
                                                  'muni' => 'power',
                                                  'us' => 'mail'
                                                }
                                 }
                    }
        };


==> Fetching [wheels, one]
$VAR1 = 'Unicycle';


==> Fetching [wheels, four, truck, utility]
$VAR1 = {
          'city' => 'trash',
          'muni' => 'power',
          'us' => 'mail'
        };


==> Fetching [wheels, four, truck, utility, blah]
$VAR1 = undef;