Table:
Fiscal Year Ended January 31,

2019	2018	2017

Discount rate	2.5%	2.4%	3.2%

Expected long-term rate of return on plan assets	3.3%	3.3%	4.3%

Rate of compensation increase	2.3%	2.3%	2.2%

For the shown table, how many rows and columns are there? Return the result as JSON in the format {"row_number": "m", "column_number": "n"}, e.g., {"row_number": "12", "column_number": "7"}.

There are 5 rows and 4 columns in the table. So, the final answer is {"row_number": "5", "column_number": "4"}.