Table:
Day	Number of miles

Sunday	8

Monday	4

Tuesday	3

Wednesday	4

Thursday	9

Extract the cells' contents in the 7th row in this table. Output the cell values in a row as JSON in the format {"row_id":"<row index>", "cell_list":"<a list of cells in this row>"}, e.g., {"row_id":"3", "cell_list": ["123.89", "News gathering", "selected tools"]}.

The cells in the 7th row: {"row_id": "7", "cell_list": ['Thursday', '9']}