Table:
Athlete	Events	Heat	Semifinal	Final

Time	Rank	Time	Rank	Time	Rank

Edmilsa Governo (Guide – Filipe Chaimite)	100 m T12	12.65	3 Q	12.35	3	Did not advance

400 m T12	54.94	2 Q	N/A	53.89

What is the count of rows and columns in the given table? Format your final answer as a JSON, using the structure {"row_number": "m", "column_number": "n"}.

This table has 4 rows and 8 columns. Thus, the final answer is {"row_number": "4", "column_number": "8"}.