rel(1645366);map_to_area->.region;rel(area.region)[boundary=administrative][admin_level=10];
Recherche des frontiéres administratives interieur à la relation "1645366" : "Валуйский муниципальный округ".
rel(1645366);map_to_area->.region;rel(area.region)[boundary=administrative][admin_level=10];