Lithuanian, the official language, is noted for its purity in retaining ancient Indo-European language forms and has some remarkable similarities with Sanskrit. It is highly inflected, with seven noun cases. Like Latvian, it has rising, falling, and short intonations. Its Roman alphabet has many special symbols, including the hacek, dot, and cedilla. The majority speak Lithuanian for their first tongue. Polish and Russian are also widely used. Minorities have the right to official use of their languages where they form a substantial part of the population.