Table:
Area	Men	Women

Time (s)	Athlete	Nation	Time (s)	Athlete	Nation

Africa (records)	43.03 WR	Wayde van Niekerk	South Africa	49.10	Falilat Ogunkoya	Nigeria

Asia (records)	43.93	Yousef Ahmed Masrahi	Saudi Arabia	49.08	Salwa Eid Nasser	Bahrain

Europe (records)	44.33	Thomas Schönlebe	East Germany	47.60 WR	Marita Koch	East Germany

North, Central America and Caribbean (records)	43.18	Michael Johnson	United States	48.70	Sanya Richards	United States

Oceania (records)	44.38	Darren Clark	Australia	48.63	Cathy Freeman	Australia

South America (records)	44.29	Sanderlei Parrela	Brazil	49.64	Ximena Restrepo	Colombia

Please ascertain the quantity of rows and columns within the provided table. Format your final answer as a JSON, using the structure {"row_number": "m", "column_number": "n"}.

This table has 8 rows and 7 columns. Thus, the final answer is {"row_number": "8", "column_number": "7"}.