$HASH1 = {
           CA     => 'Canada',
           Countries
                  => [
                       'North America',
                       'Europe'
                     ],
           EU     => 'Europe',
           Europe => [ 'France' ],
           MX     => 'Mexico',
           NA     => 'North America',
           "North America"
                  => [
                       'United States',
                       'Canada',
                       'Mexico'
                     ],
           "United States"
                  => [
                       'Boston',
                       'Atlanta'
                     ],
           US     => 'United States'
         };