Table:
December31,

2019	2018

Accrued payroll and employee benefits	$116.9	$105.9

Derivative liabilities	93.8	120.5

Current portion of operating lease liabilities	39.5	—

Tax-related accruals	30.8	38.4

Accrued legal and professional	28.7	10.9

Accrued marketing and advertising expenses	14.7	19.4

Accrued acquisition-related expenses and acquisition consideration payable	8.3	74.4

Accrued other	33.3	44.8

$366.0	$414.3

In tables, merged cells are often found and we can denote them as JSON {'top-left':(x, y), 'bottom-right':(m, n)}, with '(x, y)' and '(m, n)' indicating the (row_id, column_id) of the top-left and bottom-right cells of the merged region. Please scan the table image provided, find all occurrences of merged cells, and return their coordinates in the stated format. It's important to remember that row and column IDs begin from 1.

This table does not contain any merged cells.