not ok 1
#     Failed test (datastructures.pl at line 37)
#     Structures begin differing at:
#          $got->{SET2}[0][0] = '0'
#     $expected->{SET2}[0][0] = '2'
%hoa
$VAR1 = {
          'SET1' => [
                      [
                        '0',
                        '100',
                        'BOOK'
                      ],
                      [
                        '1',
                        '150',
                        'PENCIL'
                      ]
                    ],
          'SET2' => [
                      $VAR1->{'SET1'}[0],
                      $VAR1->{'SET1'}[1],
                      [
                        '2',
                        '111',
                        'ERASER'
                      ],
                      [
                        '2',
                        '200',
                        'PEN'
                      ],
                      [
                        '0',
                        '220',
                        'BLACKBOARD'
                      ],
                      [
                        '1',
                        '300',
                        'CHALK'
                      ]
                    ]
        };
1..1
# Looks like you failed 1 tests of 1.