Mamonovka
The Mamonovka or Banovka ( , ) is a river between Russia ( Kaliningrad Oblast ) and Poland ( Warmian-Masurian Voivodship ) . 
<triplet> Russia <subj> Kaliningrad Oblast <obj> contains administrative territorial entity <subj> Poland <obj> shares border with <triplet> Kaliningrad Oblast <subj> Russia <obj> country <subj> Warmian-Masurian Voivodship <obj> shares border with <triplet> Poland <subj> Russia <obj> shares border with <subj> Warmian-Masurian Voivodship <obj> contains administrative territorial entity <triplet> Warmian-Masurian Voivodship <subj> Poland <obj> country