Table:
Chakrabongse Bhuvanath
Prince of Siam
the Prince of Phitsanulok

Prince Chakrabongse Bhuvanath

Born	(1883-03-03)3 March 1883
Bangkok, Thailand
Died	13 June 1920(1920-06-13) (aged 37)
Bangkok, Thailand
Spouse	Ekaterina Desnitskaya (m. 1906 dv. 1919)
Princess Javalit Obhas Rabibadhana (m. 1919 wil. 1920)
Issue	Chula Chakrabongse
House	House of Chakri
Father	Chulalongkorn
Mother	Saovabha Phongsri

The task is as follows:
Analyze the table in this image to find every merged cell. Return the regions of these merged cells in the JSON {'top-left':(x, y), 'bottom-right':(z, w)}, where '(x, y)' and '(z, w)' show the (row_id, column_id) of the top-left and bottom-right cells in these regions, respectively. The row and column IDs start from 1.

The merged cell area is: {'top-left':(1, 1), 'bottom-right':(1, 4)}.