Table:
ball of twine	$0.97

roll of electrical tape	$0.84

piece of plastic pipe	$0.70

miniature padlock	$0.83

What are the cells' value in the following positions in the table? Represent each cell value in the JSON format {"row_id":"m", "column_id":"n", "cell_value":"<Corresponding Cell Value>"}. For instance, {"row_id":"5", "column_id":"4", "cell_value":"missouri 4"}.
the 1st row and the 2nd column,
the 4th row and the 1st column,

The extracted cell contents are listed below.
{"row_id":"1", "column_id":"2", "cell_value":"$0.97"}
{"row_id":"4", "column_id":"1", "cell_value":"miniature padlock"}