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

Different merged cells often exist in a table and they can be represented by the JSON {'top-left':(A, B), 'bottom-right':(C, D)}. In this JSON item, '(A, B)' and '(C, D)' are the (row_id, column_id) coordinates for the top-left and bottom-right cells in the merged region, respectively. Please examine the provided table image, identify all merged cells, and return their details using the above-mentioned format. Remember, the numbering for both rows and columns starts at 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)}.