Table:
Day	Number of spelling words

Thursday	48

Friday	47

Saturday	50

Sunday	48

Monday	50

Tuesday	50

How many rows and columns does this table contain? The final result should be presented in the JSON format of {"row_number": "m", "column_number": "n"}.

This table has 8 rows and 2 columns. Thus, the final answer is {"row_number": "8", "column_number": "2"}.