Question: Information: - Madeira is a Portuguese archipelago situated in the north Atlantic Ocean, southwest of Portugal. Its total population was estimated in 2011 at 267,785. The capital of Madeira is Funchal, located on the main island's south coast. - The Azores (or ), officially the Autonomous Region of the Azores (""), is one of the two autonomous regions of Portugal, an archipelago composed of nine volcanic islands in the North Atlantic Ocean about west of continental Portugal, about northwest of Madeira, and about southeast of Newfoundland. - The European Union (EU) is a political and economic union of member states that are located primarily in Europe. It has an area of , and an estimated population of over 510 million. The EU has developed an internal single market through a standardised system of laws that apply in all member states. EU policies aim to ensure the free movement of people, goods, services, and capital within the internal market, enact legislation in justice and home affairs, and maintain common policies on trade, agriculture, fisheries, and regional development. Within the Schengen Area, passport controls have been abolished. A monetary union was established in 1999 and came into full force in 2002, and is composed of 19 EU member states which use the euro currency. - Spain, officially the Kingdom of Spain, is a sovereign state largely located on the Iberian Peninsula in southwestern Europe, with two large archipelagos, the Balearic Islands in the Mediterranean Sea and the Canary Islands off the North African Atlantic coast, two cities Ceuta and Melilla in the North African mainland and several small islands in the Alboran Sea near the Moroccan coast. Its mainland is bordered to the south and east by the Mediterranean Sea except for a small land boundary with Gibraltar; to the north and northeast by France, Andorra, and the Bay of Biscay; and to the west and northwest by Portugal and the Atlantic Ocean. It is the only European country to have a border with an African country (Morocco) and its African territory accounts for nearly 5% of its population, mostly in the Canary Islands but also in Ceuta and Melilla. - Portugal (Portuguese: ), officially the Portuguese Republic (Portuguese: ), is a country on the Iberian Peninsula in Southwestern Europe. It is the westernmost country of mainland Europe. To the west and south it is bordered by the Atlantic Ocean and to the east and north by Spain. The PortugalSpain border is long and considered the longest uninterrupted border within the European Union. The republic also includes the Atlantic archipelagos of the Azores and Madeira, both autonomous regions with their own regional governments. - CP Comboios de Portugal, EPE (CP; English: Trains of Portugal) is a state-owned company which operates freight and passenger trains in Portugal. Before June 2009, CP stood for Caminhos de Ferro Portugueses (English: Portuguese Railways) although the company has been using its current designation as a brand name since 2004. - The Iberian Peninsula , also known as Iberia, is located in the southwest corner of Europe. The peninsula is principally divided between Portugal and Spain, comprising most of their territory. It also includes Andorra and a small part of France along the peninsula's northeastern edge, as well as Gibraltar on its south coast, a small peninsula which forms an overseas territory of the United Kingdom. With an area of approximately , it is the second largest European peninsula, after the Scandinavian. - Linha do Vouga ( the Vouga line ) is the last surviving metre gauge railway line in Portugal still operated by Comboios de Portugal . The other remaining metre gauge lines ( the Corgo , Tamega and Tua lines ) all closed in 2009 . The line is , however , also under the threat of closure . The Vouga line serves Aveiro , Agueda , Sernada do Vouga , Albergaria - a - Velha , Oliveira de Azemeis , Sao Joao da Madeira , Santa Maria da Feira , and Espinho . Since 2002 , services on the line have largely been operated by CP 's Serie 9630 diesel multiple units , which replaced the previous ex-Yugoslav Serie 9700 diesel multiple units and the Dutch - built Serie 9300 railcars . The section between Sernada do Vouga and Viseu is closed . - An archipelago, sometimes called an island group or island chain, is a chain, cluster or collection of islands. The word "archipelago" is derived from the Greek "- arkhi-" ("chief") and " pelagos" ("sea") through the Italian "arcipelago". In Italian, possibly following a tradition of antiquity, the Archipelago (from medieval Greek "*" and Latin "archipelagus") was the proper name for the Aegean Sea and, later, usage shifted to refer to the Aegean Islands (since the sea is remarkable for its large number of islands). It is now used to refer to any island group or, sometimes, to a sea containing a small number of scattered islands. What entity does 'linha do vouga' has the relation 'owned by' with?
Answer:
refer