Table:
cell phone	$386

big screen TV	$812

portable DVD player	$421

MP3 player	$351

laptop computer	$586

stereo speaker	$587

Could you count the number of rows and columns in this table? Present the final answer in a JSON format {"row_number": "m", "column_number": "n"} such as {"row_number": "2", "column_number": "3"}.

There are 6 rows and 2 columns in the table. So, the final answer is {"row_number": "6", "column_number": "2"}.