Table:
Year Ended December 31,

2019	2018	2017

Unrecognized tax benefit - beginning balance	$8,217	$7,527	$6,447

Increases for tax positions taken in prior years —	—	—	16

Decreases for tax positions taken in prior years —	__	(242)	—

Increases for tax positions taken in current year 623	623	932	1,064

Unrecognized tax benefit - ending balance	$8,840	$8,217	$7,527

This image shows a table. Tell me the row number and column number of this table. The JSON format {"row_number": "m", "column_number": "n"} should be utilized to display the ultimate result.

This table has 7 rows and 4 columns. Thus, the final answer is {"row_number": "7", "column_number": "4"}.