Pervokamenka
Pervokamenka is a rural locality ( a selo ) and the administrative center of Pervokamensky Selsoviet of Tretyakovsky District , Altai Krai , Russia . 
<triplet> Tretyakovsky District <subj> Altai Krai <obj> located in the administrative territorial entity <triplet> Altai Krai <subj> Tretyakovsky District <obj> contains administrative territorial entity