Table:
Espiritu Santo

Nickname: Santo

Map of Espiritu Santo

Geography
Location	Sanma Province, Vanuatu
Coordinates	15°15′S 166°50′E﻿ / ﻿15.250°S 166.833°E﻿ / -15.250; 166.833
Archipelago	New Hebrides
Area	3,955.5 km2 (1,527.2 sq mi)
Highest elevation	1,879 m (6165 ft)
Highest point	Mount Tabwemasana
Administration

Vanuatu

Province	Sanma
Largest settlement	Luganville (pop. 10,738)
Demographics
Population	39,606 (2009)
Ethnic groups	Ni-Vanuatu

From the provided table image, locate any cells that are merged and list their regions as {'top-left':(R1, C1), 'bottom-right':(R2, C2)}, with (R1, C1) indicating the (row_id, column_id) of top-left cell and (R2, C2) the bottom-right cell. Both the row_id and column_id start from 1.

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