Complex sentence: A relatively small proportion of Bolivian Chiquitanos speak the Chiquitano language, which is a linguistic isolate; 93.9% reported to the census that they neither speak the language nor learned it as children.
Split into simpler sentences: A relatively small proportion of Bolivian Chiquitanos speak the Chiquitano language. Many reported to the census that they neither speak the language nor learned it as children.