"The Mangbutu\u2013Lese languages of the Central Sudanic language family, also known as Mangbutu\u2013Efe, are a cluster of closely related languages spoken in the Democratic Republic of Congo and Uganda.The languages are:Mangbutu, Mvuba, Ndo, Mamvu, Lese, Bendi.Efe (the language of the Efe Pygmies) is often counted as another, but appears to be a dialect of Lese. Ndo (Membitu) is the most populous language and is spoken by a caste of blacksmiths."@en .