Table:
municipality
total population
type of population

immigrant
second generation
population with an immigrant background

thousands
percentage

census metropolitan area of vancouver
2,272.7
40.1
15.7
55.8

langley, dm
103.1
18.0
10.7
28.7

surrey
463.3
40.5
18.9
59.5

delta
98.7
28.9
14.9
43.8

richmond
189.3
59.6
15.4
75.0

vancouver
590.2
43.8
17.0
60.8

burnaby
220.3
50.5
17.8
68.2

new westminster
65.1
33.4
14.6
48.0

coquitlam
125.0
41.7
13.7
55.3

port coquitlam
55.8
29.4
12.9
42.3

north vancouver, dm
83.6
29.9
11.9
41.7

north vancouver, cy
47.7
37.2
12.0
49.2

west vancouver
42.0
40.7
11.4
52.2

maple ridge
75.1
17.2
9.9
27.1

Examine the table in this image and extract any merged cell areas. Please format the merged cell areas as JSON {'top-left':(R1, C1), 'bottom-right':(R2, C2)}, with (R1, C1) indicating the (row_id, column_id) of the top-left cell and (R2, C2) the bottom-right cell in the merged regions. Remember that the R1, C1, R2, C2 all start from 1.

The merged cell areas are as follows:
{'top-left':(1, 1), 'bottom-right':(3, 1)}
{'top-left':(1, 2), 'bottom-right':(2, 2)}
{'top-left':(1, 3), 'bottom-right':(1, 5)}
{'top-left':(3, 3), 'bottom-right':(3, 5)}.