Table:
Activity	Begin	End

water balloon toss	8:15 A.M.	9:00 A.M.

quiet time	9:05 A.M.	10:35 A.M.

music class	10:40 A.M.	12:00 P.M.

volleyball game	12:05 P.M.	12:55 P.M.

scavenger hunt	1:00 P.M.	1:30 P.M.

canoeing class	1:40 P.M.	2:55 P.M.

arts and crafts	3:00 P.M.	3:35 P.M.

horseback riding class	3:45 P.M.	4:55 P.M.

Examine the given table and identify the contents of cells located at specified locations, denoted by row and column indices. 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"}.
Specified positions:
the 9th row and the 3rd column
the 4th row and the 1st column

The extracted cell contents are listed below.
{"row_id":"9", "column_id":"3", "cell_value":"3:35 P.M."}
{"row_id":"4", "column_id":"1", "cell_value":"quiet time"}