Table:
Stem	Leaf

1	4, 7

2	0, 5, 6, 6, 8, 8

3	1, 2

4	5, 6, 9

How many rows and columns does this table have? Output the final answer in the JSON format {"row_number": "m", "column_number": "n"}. For instance, if the table has 5 rows and 4 columns, the answer would be {"row_number": "5", "column_number": "4"}

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