Table:
characteristics
univariate models
multivariate model

odds ratios

province of residence

atlantic
1.14
0.92

quebec
0.70
0.80

ontario
1.00
1.00

prairies
0.84
0.72

british columbia
1.09
0.91

age group

under 20 years
1.91
1.77

20 to 24 years
2.14
1.95

25 to 29 years
2.08
1.88

30 to 34 years
1.00
1.00

35 years and over
1.30
1.35

sex

male
1.12
1.06

female
1.00
1.00

region of birth

europe
0.92
0.69

africa
0.73
0.86

asia or oceania
0.83
0.77

united states
1.00
1.00

central or south america
0.57
0.63

de facto marital status on census day

single, widowed, separated or divorced
1.85
1.64

married or common-law
1.00
1.00

mother tongue on census day

english
1.00
1.00

french
0.66
0.77

non-official language
0.84
0.98

first npr permit

no
1.00
1.00

yes
1.19
0.60

holds more than one permit

no
1.00
1.00

yes
0.78
0.84

length of stay in canada

0 to 6 months
1.98
2.24

6 to 12 months
1.78
2.09

12 to 24 months
1.07
1.11

24 months or more
1.00
1.00

type of permit

refugee status claimant
0.54
0.53

work permit
1.00
1.00

study or minister's permit
1.01
0.77

percent

r-squared
..
7.0

number

number of observations
..
937

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':(2, 1)}
{'top-left':(2, 2), 'bottom-right':(2, 3)}
{'top-left':(3, 2), 'bottom-right':(3, 3)}
{'top-left':(9, 2), 'bottom-right':(9, 3)}
{'top-left':(15, 2), 'bottom-right':(15, 3)}
{'top-left':(18, 2), 'bottom-right':(18, 3)}
{'top-left':(24, 2), 'bottom-right':(24, 3)}
{'top-left':(27, 2), 'bottom-right':(27, 3)}
{'top-left':(31, 2), 'bottom-right':(31, 3)}
{'top-left':(34, 2), 'bottom-right':(34, 3)}
{'top-left':(37, 2), 'bottom-right':(37, 3)}
{'top-left':(42, 2), 'bottom-right':(42, 3)}
{'top-left':(46, 2), 'bottom-right':(46, 3)}
{'top-left':(48, 2), 'bottom-right':(48, 3)}.