Table:
Chongqing

重庆市

• Type	Municipality
• CPC Secretary	Chen Min'er
• Mayor	Tang Liangzhi
• Congress chairman	Zhang Xuan
• Conference chairman	Xu Jingye

How many rows and columns does this table contain? Provide the final answer in the JSON structure, using the format {"row_number": "m", "column_number": "n"}.

There are 6 rows and 2 columns in the table. So, the final answer is {"row_number": "6", "column_number": "2"}.