Original sentence: At the current stage of research, the Celebic languages are considered to make up a primary branch of the Malayo-Polynesian subgroup within in the Austronesian language family.The Celebic languages are a subgroup of the Austronesian languages spoken on the island of Sulawesi, formerly spelled Celebes
Edited sentence: Adelaar and Himmelmann (2005) go further and classify Gorontalo, Sangiric, and Minahasan as Philippine languages, with Gorontalo in a "Greater Central Philippine" branch along with Tagalog.Sulawesi has a diverse set of languages.The Celebic languages are a proposed group of Austronesian languages spoken on the island of Sulawesi, formerly spelled Celebes.The families of the north—Gorontalo, Sangiric, and Minahasan languages—have the Austronesian alignment system of syntax common to the languages of the Philippines and Borneo, and reconstructed for proto-Malayo-Polynesian.The languages of the center and south of the island have lost this system.They leave Gorontalo, Sangiric, and Minahasan outside their Nuclear MP, and the various other Sulawesi families as primary branches of Nuclear MP.Wouk and Ross (2002) argued from this that Sulawesi was the center of dispersal for a group of languages which share this loss, which they call Nuclear Malayo-Polynesian