How to delete rows on Different criteria in Power Query

Hi everyone,
I have three columns to in Excel file and I want the solution in Power Query.
Here are the complete details:

Column A Column B
U UU
U SIT
U QI
Z SIT
V SIT
V QI
V UU
Z2 SIT
Z UU
Z QI
Z SIT
Z2 QI
Z QI
Z2 SIT
Z2 SIT
Z QI
Z2 SIT


I need to remove only specific rows where Column A contains Z and Z2 and column B contains QI and UU.
In other words I just want to keep all vaue for column A except for Z and Z2 I need only SIT value in column B. Please help me to solve this issue in Power Query.

Thanks,
Rose

Power Query

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This is not what I want, I just want to delete Z and Z2 in column A which contains UU and QI and all the other data should come like in column A we have U, Z and V this data should come

This is not what I want, I just want to delete Z and Z2 in column A which contains UU and QI and all the other data should come like in column A we have U, Z and V this data should come

maybe this

Column A	Column B		Column A	Column B
U	UU		U	UU
U	SIT		U	SIT
U	QI		U	QI
Z	SIT		Z	SIT
V	SIT		V	SIT
V	QI		V	QI
V	UU		V	UU
Z2	SIT		Z2	SIT
Z	UU		Z	SIT
Z	QI		Z2	SIT
Z	SIT		Z2	SIT
Z2	QI		Z2	SIT
Z	QI
Z2	SIT
Z2	SIT
Z	QI
Z2	SIT

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Or so?

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Yes, this is I want, Thanks a Bunch !