rel(1949930);map_to_area->.region;rel(area.region)[boundary=administrative][admin_level=9];
Recherche des frontiéres administratives interieur à la relation "1949930" : "городской округ Улан-Удэ".
rel(1949930);map_to_area->.region;rel(area.region)[boundary=administrative][admin_level=9];