$original = [
              {
                'I/C' => '123',
                'Ref' => '12',
                'Sex' => 'Male',
                'Name' => 'John'
              },
              {
                'I/C' => '125',
                'Ref' => '12',
                'Location' => 'Female',
                'Name' => 'Pretty'
              },
              {
                'I/C' => '124',
                'Ref' => '11',
                'Location' => 'Male',
                'Name' => 'Kim'
              }
            ];
$twelves = [
             {
               'I/C' => '123',
               'Ref' => 12,
               'Sex' => 'Male',
               'Name' => 'John'
             },
             {
               'I/C' => '125',
               'Ref' => 12,
               'Location' => 'Female',
               'Name' => 'Pretty'
             }
           ];