Table:
Rank	Nation	Gold	Silver	Bronze	Total
1	Canada (CAN)	2	0	0	2
2	Australia (AUS)	0	1	0	1
Netherlands (NED)	0	1	0	1
4	Japan (JPN)	0	0	1	1
United States (USA)	0	0	1	1
Totals (5 entries)	2	2	2	6

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

This table does not contain any merged cells.