Table:
linked cctlp tumour cohort
tumours with one or more surgical interventions

number
number
percentage

canada
44,970
37,315
83.0

newfoundland and labrador
1,495
1,295
86.5

prince edward island
300
250
82.5

nova scotia
2,330
1,930
82.9

new brunswick
1,545
1,275
82.5

ontario
21,510
17,440
81.1

manitoba
2,385
1,945
81.7

saskatchewan
2,070
1,745
84.2

alberta
5,145
4,320
84.0

british columbia
8,050
6,995
86.9

yukon
45
40
87.0

northwest territories
70
60
84.5

nunavut
25
20
88.5

Here's what I need you to do:
In the image of this table, identify all the merged cells. Provide the coordinates of these merged regions in the JSON {'top-left':(x, y), 'bottom-right':(z, w)}, with '(x, y)' and '(z, w)' indicating the (row_id, column_id) of the top-left and bottom-right cells, respectively. Remember, row and column numbering starts at 1.

The merged cell regions are as follows:
{'top-left':(1, 1), 'bottom-right':(2, 1)}
{'top-left':(1, 3), 'bottom-right':(1, 4)}.