Table:
Athlete	Events	Heat	Semifinal	Final

Time	Rank	Time	Rank	Time	Rank

Edmilsa Governo (Guide – Filipe Chaimite)	100 m T12	12.65	3 Q	12.35	3	Did not advance

400 m T12	54.94	2 Q	N/A	53.89

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 regions are as follows:
{'top-left':(1, 1), 'bottom-right':(2, 1)}
{'top-left':(1, 2), 'bottom-right':(2, 2)}
{'top-left':(1, 3), 'bottom-right':(1, 4)}
{'top-left':(1, 5), 'bottom-right':(1, 6)}
{'top-left':(1, 7), 'bottom-right':(1, 8)}
{'top-left':(3, 1), 'bottom-right':(4, 1)}
{'top-left':(3, 7), 'bottom-right':(3, 8)}
{'top-left':(4, 5), 'bottom-right':(4, 6)}.