Table:
Stem	Leaf

6	2, 3, 5, 7, 7, 9

7	0, 0, 5, 7

8	2

9	0

Based on the table image, extract the value of the cell located in the subsequent postion:
the 4th row and the 1st column

Show the cell value in the JSON format {"row_id":"m", "column_id":"n", "cell_value":"<Corresponding Cell Value>"}.

The target cell value in the 4th row and the 1st column is {"row_id":"4", "column_id":"1", "cell_value":"7"}.