Table:
Street	Number of stop signs

Spring Street	7

Smith Street	8

Irving Street	9

Watson Street	8

Marshall Street	8

Peabody Street	7

Mason Street	5

Walker Street	4

What is the count of rows and columns in the given table? Provide the final answer in the JSON structure, using the format {"row_number": "m", "column_number": "n"}.

This table has 10 rows and 2 columns. Thus, the final answer is {"row_number": "10", "column_number": "2"}.