Table:
rank	nation	gold	silver	bronze	total

1	united states	4	0	1	5

2	canada	1	2	1	4

3	latvia	1	0	0	1

4	germany	0	4	2	6

5	new zealand	0	0	1	1

5	united kingdom	0	0	1	1

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:
the 6th row and the 4th column
the 5th row and the 5th column
the 7th row and the 3rd column
the 6th row and the 2nd column
the 4th row and the 6th column
the 5th row and the 4th column

The extracted cell contents are listed below.
{"row_id":"6", "column_id":"4", "cell_value":"0"}
{"row_id":"5", "column_id":"5", "cell_value":"2"}
{"row_id":"7", "column_id":"3", "cell_value":"0"}
{"row_id":"6", "column_id":"2", "cell_value":"new zealand"}
{"row_id":"4", "column_id":"6", "cell_value":"1"}
{"row_id":"5", "column_id":"4", "cell_value":"4"}