Table:
ratio of listings to dwellings
daily revenue per available listing
daily revenue per available room

%
dollars

canada
0.9
37.20
94.82

newfoundland and labrador
0.4
25.77
90.45

prince edward island
1.4
49.06
77.43

nova scotia
0.6
40.97
84.36

new brunswick
0.3
26.26
66.36

quebec
1.2
31.16
108.34

ontario
0.8
36.61
98.79

manitoba
0.2
17.78
76.63

saskatchewan
0.2
14.36
67.67

alberta
0.5
23.83
68.81

british columbia
1.7
50.55
111.45

yukon
1.4
25.32
.

northwest territories
0.8
41.06
.

nunavut
0.2
12.34
.

I need you to conduct the following task:
Given this table image, find all merged table cells and return merged regions with the JSON {'top-left':(x, y), 'bottom-right':(m, n)},  where (x, y) and (m, n) indicate the (row_id, column_id) of top-left and bottom-right cells in the merged regions, respectively. You should remember that row id and column id start from 1.

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