claim: Japan is represented by one centralized federal government.
evidence: Rezaabad -LRB- رضااباد , also Romanized as Rezaabad ; also known as Cham Kav , Chenar Bashi , and Chenar Bashi-ye Rezaabad -RRB- is a village in Alishervan Rural District , in the Sivan District of Ilam County , Ilam Province , Iran .. Province. Provinces of Iran. Ilam. Ilam County. County. Counties of Iran. Sivan. Sivan District. Rural District. Rural Districts of Iran. Alishervan. Alishervan Rural District. Alishervan Rural District. Alishervan Rural District. Sivan District. Sivan District. Ilam County. Ilam County. Ilam Province. Ilam Province. Iran. Iran. At the 2006 census , its population was 31 , in 7 families .