claim: Gotham City Sirens is a comic book series.
evidence: The Pkhista is a river in the West Caucasus , near the border between Abkhazia and Russia .. West Caucasus. West Caucasus. Abkhazia. Abkhazia. Russia. Russia. It has a length of 13 km and flows into the left -LRB- eastern -RRB- bank of the Psou River to the south of the village of Salkhino .. Psou River. Psou River. Salkhino. Salkhino. It is one of two main left hand side tributaries of the Psou River , the other being the Besh River .. Psou River. Psou River. Besh River. Besh River. Both tributaries are in Georgia .. Georgia. Georgia ( country )