Table:
($ in millions)

For the year ended December 31:	2019	2018	2017

Cost	$100	$82	$91

Selling, general and administrative	453	361	384

Research, development and engineering	126	67	59

Pre-tax stock-based compensation cost	679	510	534

Income tax benefits	(155)	(116)	(131)

Net stock-based compensation cost	$524	$393	$403

What are the cell's value in the following position in the table?
row 6 and column 1

Represent the cell value in the JSON format {"row_id":"m", "column_id":"n", "cell_value":"<Corresponding Cell Value>"}. For instance, {"row_id":"5", "column_id":"4", "cell_value":"missouri 4"}.

The target cell value in row 6 and column 1 is {"row_id":"6", "column_id":"1", "cell_value":"Pre-tax stock-based compensation cost"}.