Table:
Johan Johansen

Based on this table picture, can you identify any merged cells and give their coordinates in the JSON format {'top-left':(x, y), 'bottom-right':(m, n)}, where (x, y) and (m, n) correspond to the top-left and bottom-right (row_id, column_id) of the merged area? The row_id and column_id should start from 1 rather than 0.

The merged cell region is: {'top-left':(1, 1), 'bottom-right':(1, 2)}.