Table:
Athlete	Events	Heat	Semifinal	Final

Time	Rank	Time	Rank	Time	Rank

Edmilsa Governo (Guide – Filipe Chaimite)	100 m T12	12.65	3 Q	12.35	3	Did not advance

400 m T12	54.94	2 Q	N/A	53.89

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_id, column_id)} which begin from '(1, 1)'.
Target cells:
CELL VALUE 1: 'n/a'
CELL VALUE 2: 'edmilsa governo'
CELL VALUE 3: '53.89'
CELL VALUE 4: 'acton - boxboro high school (ushs - ma)'
CELL VALUE 5: 'final'
CELL VALUE 6: '12.35'
CELL VALUE 7: '100 m t12'

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

The target cell locations are as follows:
CELL LOCATION 1: {'value': 'n/a', 'location': (4, 5)}
CELL LOCATION 2: {'value': 'edmilsa governo', 'location': (3, 1)}
CELL LOCATION 3: {'value': '53.89', 'location': (4, 7)}
CELL LOCATION 4: {'value': 'acton - boxboro high school (ushs - ma)', 'location': 'DOES NOT EXIST'}
CELL LOCATION 5: {'value': 'final', 'location': (1, 7)}
CELL LOCATION 6: {'value': '12.35', 'location': (3, 5)}
CELL LOCATION 7: {'value': '100 m t12', 'location': (3, 2)}