English is also widely spoken and understood throughout the island. Moldova — the Law concerning the rights of persons belonging to the national minorities and the legal status of the organizations thereof provides for the use of Romanian and Russian in tertiary education, communication with authorities and publishing regulatory acts. It also provides for the use of Ukrainian, Gagauz, Bulgarian, Hebrew, Yiddish and other (unnamed) languages in education. Gagauzia — Romanian, Gagauz, Russian Transnistria — Moldovan, Russian, Ukrainian In Romania, the official language is Romanian, but significant minority languages are recognized at a local level, with commitments made in respect of use of Bulgarian, Czech, Croatian, German, Hungarian, Russian, Serbian, Slovak, Turkish and Ukrainian in areas where their share of speakers is at least 20%. The biggest ethnic minority is the Hungarian community of 1.4 million (6.6%). In Turkey, the Constitution of Turkey defines Turkish as the only official language of the country (art. 3) and explicitly prohibits educational institutions to teach any language other than Turkish as a mother tongue to Turkish citizens (art. 42). Only exception is Greek and Armenian languages, which can be taught in schools as part of non-Muslim minorities rights of Treaty of Lausanne. In 2013, the Ministry of Education introduced Kurdish, Abkhaz, Adyghe and Laz languages into the academic programme of the basic schools as optional classes from the fifth year on. In 2010, Kurdish municipalities in the southeast decided to begin printing water bills, marriage certificates and construction and road signs, as well as emergency, social and cultural notices, in Kurdish alongside Turkish. Friday sermons by imams began to be delivered in the language, and Esnaf provided Kurdish price tags. Before August 2002, the Turkish government placed severe restrictions on the use of Kurdish, prohibiting the language in education and broadcast media. In March 2006, Turkey allowed private television channels to broadcast in Kurdish. However, the Turkish government said that they must avoid showing children's cartoons, or educational programs that teach Kurdish, and could broadcast only for 45 minutes a day or four hours a week. However, most of these restrictions on private Kurdish television channels were relaxed in September 2009. In successor countries of the former SFR Yugoslavia, official languages of Serbian, Croatian, Bosnian and Montenegrin are mutually intelligible by all four groups (see Serbo-Croatian). Other smaller languages in the new republics of Slovenia (Slovene) and North Macedonia (Macedonian) are not. There