Question: Are both villages, Gasteren and Sefid Kuh, Mazandaran, located in the same country?
Sentence (from "Sefid Kuh, Mazandaran"): Sefid Kuh( also Romanized as Sefīd Kūh) is a village in Estakhr -e Posht Rural District, Hezarjarib District, Neka County, Mazandaran Province, Iran.
Relevant evidence: Yes