Table:
cfs

Rank	Date	Level at Trent Bridge

m	Level at Trent Bridge

ft	Peak Flow

m3/s	Peak Flow

1	February 1795	24.55	80.5	1,416	50,000

2	October 1875	24.38	80.0	1,274	45,000

3	March 1947	24.30	79.7	1,107	39,100

4	November 1852	24.26	79.6	1,082	38,200

5	November 2000	23.80	78.1	1,019	36,000

Normal / Avg flow	20.7	68	84	3,000

Based on the provided table, please extract the cells' values located at the specified positions, as denoted by row and column indices. Show the cell value in the JSON format {"row_id":"m", "column_id":"n", "cell_value":"<Corresponding Cell Value>"}.
Positions:
row 3 and column 6
row 7 and column 5
row 2 and column 6
row 5 and column 3

The target cell values are as follows:
{"row_id":"3", "column_id":"6", "cell_value":"45,000"}
{"row_id":"7", "column_id":"5", "cell_value":"84"}
{"row_id":"2", "column_id":"6", "cell_value":"50,000"}
{"row_id":"5", "column_id":"3", "cell_value":"24.26"}