Table:
class of worker
agricultural region 7 manitoba
agricultural region 8 manitoba
agricultural region 9 manitoba
agricultural region 8b saskatchewan
agricultural region 7 alberta

french-language workers
other workers
french-language workers
other workers
french-language workers
other workers
french-language workers
other workers
french-language workers
other workers

percent

did not work in 2010
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0

employee
46.7
39.5
41.4
46.9
74.6
77.0
35.0
32.3
20.8
27.2

unpaid family worker
0.0
5.9
8.6
4.9
0.0
2.5
0.0
7.8
10.4
9.4

self-employed, incorporated
20.0
21.1
32.8
15.6
12.7
6.1
25.0
19.0
28.6
16.5

self-employed, non-incorporated
31.1
33.4
17.2
32.4
9.9
14.4
40.0
41.0
39.0
46.9

The task is as follows:
Analyze the table in this image to find every merged cell. Return the regions of these merged cells in the JSON {'top-left':(x, y), 'bottom-right':(z, w)}, where '(x, y)' and '(z, w)' show the (row_id, column_id) of the top-left and bottom-right cells in these regions, respectively. The row and column IDs start from 1.

The merged cell areas are as follows:
{'top-left':(1, 1), 'bottom-right':(3, 1)}
{'top-left':(1, 2), 'bottom-right':(1, 3)}
{'top-left':(1, 4), 'bottom-right':(1, 5)}
{'top-left':(1, 6), 'bottom-right':(1, 7)}
{'top-left':(1, 8), 'bottom-right':(1, 9)}
{'top-left':(1, 10), 'bottom-right':(1, 11)}
{'top-left':(3, 2), 'bottom-right':(3, 11)}.