Table:
George Preti

Born	1944

Brooklyn, New York

Citizenship	USA
Known for	Research on human body odors and TMAU
Scientific career
Fields	organic chemist
Institutions	Monell Chemical Senses Center

Regarding the table displayed, can you identify how many rows and columns it has? Present the final answer in a JSON format {"row_number": "m", "column_number": "n"} such as {"row_number": "2", "column_number": "3"}.

This table has 5 rows and 4 columns. Thus, the final answer is {"row_number": "5", "column_number": "4"}.