structural:expansion
Maranhão is a state in Brazil. Located in the country's Northeast Region, it has a population of about 7 million and an area of 332,000 km⁲ (128,000 sq mi). Clockwise from north, it borders on the Atlantic Ocean for 2,243 km and the states of Piauí, Tocantins and Pará. The people of Maranhão have a distinctive accent within the common Northeastern Brazilian dialect. Maranhão is described in literary works such as Exile Song by Gonçalves Dias and Casa de Pensão by Aluísio Azevedo. The dunes of Lençóis are an important area of environmental preservation. Also of interest is the state capital of São Luís, which is a UNESCO World Heritage Site. Another important conservation area is the Parnaíba River delta, between the states of Maranhão and Piauí, with its lagoons, desert dunes and deserted beaches or islands, such as Caju island, which shelters rare birds.