Table:
Chennai

Madras

• Megacity	7,088,000
• Rank	4th
• Density	17,000/km2 (43,000/sq mi)
• Metro

8,653,521
8,917,749 (Extended UA)
• Metro rank

4th
Demonym(s)	Chennaiite

The picture contains a table. You task is to identify any merged cells in this table, and output the scope of each merged cell using the JSON format of {'top-left':(x, y), 'bottom-right':(m, n)}. The row id and column id should start from 1.

The merged cell area is: {'top-left':(1, 1), 'bottom-right':(1, 2)}.