Table:
x	y

12	4

12	9

15	7

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

There are 4 rows and 2 columns in the table. So, the final answer is {"row_number": "4", "column_number": "2"}.