Table:
Number of crates	Number of bunches of bananas

1	2

2	4

3	?

Retrieve the content of the cell located in row 3 and column 1 of this table. The target cell value should be presented in the JSON format of {"row_id":"m", "column_id":"n", "cell_value":"<Corresponding Cell Value>"}, e.g., {"row_id":"10", "column_id":"3", "cell_value":"District"}.

The target cell value in row 3 and column 1 is {"row_id":"3", "column_id":"1", "cell_value":"2"}.