Table:
Brigadier Gerard
Sire	Queen's Hussar
Grandsire	March Past
Dam	La Paiva
Damsire	Prince Chevalier
Sex	Stallion
Foaled	1968
Country	Great Britain
Colour	Bay
Breeder	John L. Hislop
Owner	Mr & Mrs. John L. Hislop
Trainer	Dick Hern
Record	18: 17-1-0
Earnings	£253,024.70

I need you to conduct the following task:
Given this table image, find all merged table cells and return merged regions with the JSON {'top-left':(x, y), 'bottom-right':(m, n)},  where (x, y) and (m, n) indicate the (row_id, column_id) of top-left and bottom-right cells in the merged regions, respectively. You should remember that row id and column id start from 1.

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