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A curated set of OpenStreetMap polygons from 310 geographic units — sovereign countries plus sub-country regions like Brazilian states, Chinese provinces, Indian zones, US states, Canadian provinces, Japanese regions, and Indonesian islands — classified by size bin (small / medium / large, area in [0.1, 100] km²) and tagged by continent (Natural Earth admin0 lookup).
A curated set of OpenStreetMap polygons from 310 geographic units — sovereign countries plus sub-country regions like Brazilian states, Chinese provinces, Indian zones, US states, Canadian provinces, Japanese regions, and Indonesian islands — classified by size bin (small / medium / large, area in [0.1, 100] km²) and tagged by continent (Natural Earth admin0 lookup).