Angrapa
The Angrapa ( , , , ) is a river that begins in northeastern Poland and ends in the Kaliningrad Oblast of Russia . 
<triplet> Poland <subj> Russia <obj> shares border with <triplet> Kaliningrad Oblast <subj> Russia <obj> country <triplet> Russia <subj> Poland <obj> shares border with <subj> Kaliningrad Oblast <obj> contains administrative territorial entity