Vasylkivka
Vasylkivka is located on the banks of the Vovcha River , a left tributary of the Samara , itself a left tributary of the Dnieper . 
<triplet> Vovcha River <subj> Samara <obj> mouth of the watercourse <triplet> Samara <subj> Vovcha River <obj> tributary <subj> Dnieper <obj> mouth of the watercourse