The languages of East Timor include both Austronesian and Papuan languages. (See Timor–Flores languages and Timor–Alor–Pantar languages.) The lingua franca and national language of East Timor is Tetum, an Austronesian language influenced by Portuguese, with which it has equal status as an official language. The language of the Ocussi exclave is Uab Meto (Dawan). Fataluku is a Papuan language widely used in the eastern part of the country (often more so than Tetum). Both Portuguese and Tetum have official recognition under the Constitution of East Timor, as do other indigenous languages, including: Bekais, Bunak, Galoli, Habun, Idalaka, Kawaimina, Kemak, Lovaia, Makalero, Makasae, Mambai, Tokodede and Wetarese. The rise of lingua francas in the linguistically diverse East Timor and the domination of several clans over others have led to the extinction of many smaller languages. However, some of them are still in use as ritual languages or cants. Research done in the mid-2000s by the Dutch linguist Aone van Engelenhoven, for example, revealed that the Makuva language, formerly spoken by the Makuva tribe but believed to have been extinct since the 1950s, was still used occasionally. In 2007, Van Engelenhoven discovered the existence of another language that was essentially extinct, called Rusenu. Official languages Section 13(1) of the 2002 constitution designates Portuguese and Tetum as East Timor's two official languages. The same section also provides that "Tetum and the other national languages shall be valued and developed by the State." English and Indonesian are sometimes used and section 159 of the constitution provides that these languages serve as "working languages within civil service side by side with official languages as long as deemed necessary". Under Portuguese rule, all education was through the medium of Portuguese, although it coexisted with Tetum and other languages. Portuguese particularly influenced the dialect of Tetum spoken in the capital, Dili, known as Tetun Prasa, as opposed to the more traditional version spoken in rural areas, known as Tetun Terik. Tetun Prasa is the version more widely used, and is now taught in schools. Under Indonesian rule from 1976 to 1999, East Timor's official language was Indonesian; It, Along with English, currently has the status of a 'working language' under the present constitution. For many older East Timorese, the Indonesian language has negative connotations with the Suharto regime, but many younger people expressed suspicion or hostility to the reinstatement of Portuguese, which they saw as a 'colonial