Karelian sky-smith hero; the requested Sampo is foregrounded in materialCulture. English 'Ilmarinen the Sky-Smith' leads; native Ilmarinen in term. Demigod/culture-hero tier (divine smith who forged the heavens). Distinct id from existing finnish_ilmarinen; the Karelian runo-corpus (e.g. Arhippa Perttunen's Sampo-songs) is the actual source layer.