Table:
Month	Waiting time (minutes)

May	28

June	34

July	36

August	33

September	22

the 7th row and the 2nd column,
the 3rd row and the 2nd column,
the 5th row and the 2nd column,
the 2nd row and the 2nd column,
the 6th row and the 2nd column,
Extract the contents of cells in the above positions, identified by row and column indices. Format each cell value as a JSON, using the structure {"row_id":"m", "column_id":"n", "cell_value":"<Corresponding Cell Value>"}.

The extracted cell contents are listed below.
{"row_id":"7", "column_id":"2", "cell_value":"22"}
{"row_id":"3", "column_id":"2", "cell_value":"28"}
{"row_id":"5", "column_id":"2", "cell_value":"36"}
{"row_id":"2", "column_id":"2", "cell_value":"Waiting time (minutes)"}
{"row_id":"6", "column_id":"2", "cell_value":"33"}