Table:
characteristics
geometric mean
95% confidence interval

from
to

total
1.3
1.1
1.4

age group

6 to 8
1.8
1.6
2.1

9 to 11
1.4
1.2
1.7

12 to 14
1.2
1.0
1.4

15 to 17
0.9
0.8
1.1

sex

male
1.2
1.1
1.4

female
1.3
1.2
1.5

time of urine collection

morning
1.1
1.0
1.3

afternoon
1.5
1.3
1.7

evening
1.4
1.0
1.7

ethnicity

white
1.3
1.2
1.5

non-white
1.3
1.0
1.6

exposure to second-hand smoke

once a week or less
1.2
1.1
1.4

every day or almost every day
1.6
1.4
2.0

household income

low/lower-middle
1.7
1.4
2.0

upper-middle
1.2
1.0
1.4

highest
1.2
1.1
1.4

household education

secondary school graduation or less
1.3
1.0
1.6

at least some postsecondary
1.3
1.1
1.5

body mass index

neither overweight nor obese
1.3
1.2
1.5

overweight
1.3
1.0
1.7

obese
1.2
1.0
1.4

To fulfill your task, review the table image and pinpoint the positions of the specified cells. Make sure to represent a cell's location using the JSON format {'value': '<cell value>', 'location': (row number, column number)} which begin from '(1, 1)'.
Target cells:
1. 'upper-middle',
2. 'machinery, 333',
3. '496',

Use 'DOES NOT EXIST' as the location for a non-existing cell in the table.

The coordinates of target cells are listed below.
1. {'value': 'upper-middle', 'location': (24, 1)}
2. {'value': 'machinery, 333', 'location': 'DOES NOT EXIST'}
3. {'value': '496', 'location': 'DOES NOT EXIST'}