Ahvenkoski
Ahvenkoski is a historical site in the Kymenlaakso region , Finland , located by the westernmost branch of the river Kymijoki . 
<triplet> Ahvenkoski <subj> Finland <obj> country <subj> Kymijoki <obj> location <triplet> Kymenlaakso region <subj> Finland <obj> country <triplet> Finland <subj> Kymenlaakso region <obj> contains administrative territorial entity <triplet> Kymijoki <subj> Finland <obj> country