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Western Nilotic is divided into two main clusters: Dinka–Nuer and Luo. The Luo Languages are languages spoken by the Luo peoples. They include but are not fully limited to, Shilluk, Luwo, Thuri, Belanda Bor, Burun, Päri, Anuak, and Southern Luo. Although mostly being considered a Western Nilotic language and part of the Luo language group, the Burun languages are thought by linguist Roger Blench as a fourth subgroup of Nilotic. The Dinka-Nuer Languages are the larger of the two subgroups and are spoken primarily in South Sudan. These languages include the Dinka language, Nuer, and Atuot. It is also popular belief of linguists that Burun is a third subgroup of Western Nilotic.