Access – Counting multiple columns with “Y” value

I am new to using Access SQL statements. After hours of attempts, I either get erroneous results, or unresolved SYNTAX errors. Hopefully, someone can help me resolve the following problem:

In an SQL statement, I have a table that I would like to obtain the sum for "each" of three columns based on a certain value within a group. Example: For each Region, I would like to know the total sum for column-2 when a "Y" value is found, the total sum for column-3 when a "Y' value is found, and the total sum for column-4 when a "Y" value is found.

TBL-RegionValidation - table name
Region - column1
ProductFlagged - column2
ProductValidated - column3
ProductRemoved - column4

Your assistance would be greatly appreciate!
-Tim