Table:
porcini mushrooms	$13 per lb

chanterelle mushrooms	$22 per lb

enoki mushrooms	$14 per lb

button mushrooms	$6 per lb

portobello mushrooms	$10 per lb

Regarding the table displayed, can you identify how many rows and columns it has? Show your final answer in the JSON format {"row_number": "m", "column_number": "n"}.

This table has 5 rows and 2 columns. Thus, the final answer is {"row_number": "5", "column_number": "2"}.