Table:
Athlete	Event	Heat	Quarterfinal	Semifinal	Final

Result	Rank	Result	Rank	Result	Rank	Result	Rank

Héctor Cotto	110 m hurdles	13.72	6 q	13.73	8	Did not advance

Javier Culson	400 m hurdles	49.60	4 q	N/A	49.85	8	Did not advance

David Freeman	1500 m	3:39.70	10	N/A	Did not advance

Félix Martínez	400 m	46.46	7	N/A	Did not advance

Could you analyze the table shown in the image and inform me about all the merged cell areas? Use the JSON {'top-left':(X, Y), 'bottom-right':(Z, W)} to represent each merged area, with (X, Y) as the (first row, first column) and (Z, W) as the (last row, last column). Note that the X, Y, Z, W all start from 1.

The merged cell areas 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':(1, 9), 'bottom-right':(1, 10)}
{'top-left':(3, 7), 'bottom-right':(3, 10)}
{'top-left':(4, 5), 'bottom-right':(4, 6)}
{'top-left':(4, 9), 'bottom-right':(4, 10)}
{'top-left':(5, 5), 'bottom-right':(5, 6)}
{'top-left':(5, 7), 'bottom-right':(5, 10)}
{'top-left':(6, 5), 'bottom-right':(6, 6)}
{'top-left':(6, 7), 'bottom-right':(6, 10)}.