Table:
Karl Ferdinand Braun

Born	(1850-06-06)6 June 1850

Fulda, Electorate of Hessen, German Confederation

Died	20 April 1918(1918-04-20) (aged 67)

Brooklyn, New York, U.S.

Nationality	German
Alma mater	University of Marburg,
University of Berlin
Known for	Cathode ray tube, Cat's whisker diode
Awards	Nobel Prize in Physics (1909)
Scientific career
Fields	Physics
Institutions	University of Karlsruhe,
University of Marburg,
University of Strassburg,
University of Tübingen,
University of Würzburg
Doctoral advisor	A. Kundt,
G. H. Quincke
Doctoral students	L. I. Mandelshtam,
A. Schweizer

Tell me the row and column numbers of the shown table. Format your final answer as a JSON, using the structure {"row_number": "m", "column_number": "n"}.

This table has 12 rows and 2 columns. Thus, the final answer is {"row_number": "12", "column_number": "2"}.