Table:
lowest quartile
second quartile
third quartile
highest quartile
total

percent

mobile devices only
24.1
14.7
13.8
8.0
13.5

personal computer
75.9
85.3
86.2
92.0
86.5

Retrieve the values of cells at the given table positions, indicated by row and column indices. Provide the value of all target cells in the JSON structure, using the format {"row_id":"m", "column_id":"n", "cell_value":"<Corresponding Cell Value>"}.
Positions to check:
the 4th row and the 4th column
the 1st row and the 5th column
the 3rd row and the 2nd column

The extracted cell contents are listed below.
{"row_id":"4", "column_id":"4", "cell_value":"86.2"}
{"row_id":"1", "column_id":"5", "cell_value":"highest quartile"}
{"row_id":"3", "column_id":"2", "cell_value":"24.1"}