Table:
Athlete	Event	Heat	Quarterfinal	Semifinal	Final

Result	Rank	Result	Rank	Result	Rank	Result	Rank

Churandy Martina	100 m	10.23	3 Q	10.24	7	Did not advance

Geronimo Goeloe	200 m	21.09	7	Did not advance

For the shown table, how many rows and columns are there? The final result should be presented in the JSON format of {"row_number": "m", "column_number": "n"}.

There are 4 rows and 10 columns in the table. So, the final answer is {"row_number": "4", "column_number": "10"}.