Table:
Jewess with Oranges

Artist	Aleksander Gierymski
Year	1880-1881
Medium	Oil on canvas
Dimensions	66 cm × 55 cm (26 in × 22 in)
Location	National Museum, Warsaw

Based on the provided table, please extract the cells' values located at the specified positions, as denoted by row and column indices. Return each cell value as JSON in the format {"row_id":"m", "column_id":"n", "cell_value":"<Corresponding Cell Value>"}.
Positions:
row 6 and column 2
row 4 and column 1
row 5 and column 1
row 2 and column 2
row 5 and column 2
row 4 and column 2

The extracted cell contents are listed below.
{"row_id":"6", "column_id":"2", "cell_value":"National Museum, Warsaw"}
{"row_id":"4", "column_id":"1", "cell_value":"Medium"}
{"row_id":"5", "column_id":"1", "cell_value":"Dimensions"}
{"row_id":"2", "column_id":"2", "cell_value":"Aleksander Gierymski"}
{"row_id":"5", "column_id":"2", "cell_value":"66 cm   55 cm (26 in   22 in)"}
{"row_id":"4", "column_id":"2", "cell_value":"Oil on canvas"}