Table:
x	y

2	4

3	10

4	12

Analyze the provided table and extract the contents of specified rows or columns, identified by row or column indices. Provide the cells in each row or column in the JSON structure, using the format {"row_id/column_id":"<row or column index>", "cell_list":"<a list of cells in this row/column>"}.
Target rows or columns:
the 1st row,
the 2nd column,

The extracted row or column contents are listed below.
For the 1st row: {"row_id": "1", "cell_list": ['x', 'y']}
For the 2nd column: {"column_id": "2", "cell_list": ['y', '4', '10', '12']}