Table:
Day	Number of photographs

Saturday	10

Sunday	9

Monday	8

Tuesday	4

Wednesday	4

Thursday	1

Extract the content of the cell at row 1 and column 1 in this table. Provide the value of target cell in the JSON structure, using the format {"row_id":"m", "column_id":"n", "cell_value":"<Corresponding Cell Value>"}.

The target cell value in row 1 and column 1 is {"row_id":"1", "column_id":"1", "cell_value":"Photographs taken"}.