Table:
As of December 31,

2019	2018

Finished goods	$9,447	$10,995

Work-in-process	14,954	12,129

Raw materials	23,363	25,746

Less: Inventory reserves	(5,527)	(5,384)

Inventories, net	$42,237	$43,486

Please perform the following task:
Examine the provided table image to identify all cells that are merged. Report back the merged cell areas using the JSON {'top-left':(X, Y), 'bottom-right':(Z, W)}, where '(X, Y)' represents the top-left and '(Z, W)' the bottom-right cell's (row_id, column_id) in each merged region. Note that both row and column IDs begin at 1.

This table does not contain any merged cells.