How Do i Automatically mark table under conditional label

[Chirag_]

I want to mark certain tables that contains  Data classification - "PII"  under conditional labels 

Here is the logic i want implement:

Conditional label must be applied where Contains Data classification = "PII"

i tried Creating MQL Query but it does not parse:

SELECT Name, Object Type
WHERE category = 'Database.Tables'
AND EXISTS (
'Database.Columns' WHERE "Data Classifications" = 'PII'
)

Any solution that may help me mark Tables 

Regards,

Chirag