Table:
Price	Quantity demanded	Quantity supplied

$200	17,900	12,300

$400	14,200	12,800

$600	10,500	13,300

$800	6,800	13,800

$1,000	3,100	14,300

Based on the given table, what are the contents of the cells in the following positions in the table? The value of every target cell 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 2nd row and the 2nd column
the 1st row and the 2nd column
the 1st row and the 3rd column
the 3rd row and the 3rd column
the 5th row and the 2nd column
the 2nd row and the 1st column
the 5th row and the 3rd column
the 6th row and the 2nd column

The target cell values are as follows:
{"row_id":"2", "column_id":"2", "cell_value":"17,900"}
{"row_id":"1", "column_id":"2", "cell_value":"Quantity demanded"}
{"row_id":"1", "column_id":"3", "cell_value":"Quantity supplied"}
{"row_id":"3", "column_id":"3", "cell_value":"12,800"}
{"row_id":"5", "column_id":"2", "cell_value":"6,800"}
{"row_id":"2", "column_id":"1", "cell_value":"$200"}
{"row_id":"5", "column_id":"3", "cell_value":"13,800"}
{"row_id":"6", "column_id":"2", "cell_value":"3,100"}