Table:
Class	Begin	End

Computer Graphics	8:15 A.M.	8:55 A.M.

Computer Finance	9:10 A.M.	9:55 A.M.

Advanced Programming	10:10 A.M.	10:40 A.M.

Math with Computers	10:50 A.M.	11:55 A.M.

Computer Science	12:05 P.M.	1:10 P.M.

Spreadsheets	1:20 P.M.	2:40 P.M.

Web Page Design	2:50 P.M.	3:40 P.M.

Could you calculate the row number and column number in this table? The final result should be presented in the JSON format of {"row_number": "m", "column_number": "n"}.

There are 9 rows and 3 columns in the table. So, the final answer is {"row_number": "9", "column_number": "3"}.