Duplicates in simple OP PID report (drawing)

I created simple drawing report (3 attributes) which shows   me duplicates. As you can see below item: 4 & 5 duplicates. Three attributes in row 4 are exactly these same  like in row 5.

How to modify filter which alow me to eliminate duplicates which should exist on a drawing but I do not want to show them in a table.

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