claim: Zoroastrianism has no major features.
evidence: Tumma is an ethnic group in South Kurdufan in Sudan .. South Kurdufan. South Kurdufan. Sudan. Sudan. They speak Katcha-Kadugli-Miri , a Nilo-Saharan language .. Katcha-Kadugli-Miri. Katcha-Kadugli-Miri. The population of this group likely exceeds 10,000 .