Question: What is the largest city on the Caspian Sea and of the Caucasus region, has a railway line in the station in a settlement in the municipality of Nakhchivan in Nakhchivan City, Nakhchivan Autonomous Republic, Azerbaijan?

full_context: Document 1: List of cities in Azerbaijan: This is a list of cities in Azerbaijan. Azerbaijan is a country in the South Caucasus region, situated at the crossroads of Southwest Asia and Southeastern Europe. In total, Azerbaijan has 77 cities (including 12 Federal-level cities), 64 smaller "rayon" -class cities, and one special legal status city. These are followed by 257 urban-type settlements and 4,620 villages.
Document 2: Nakhchivan (city): The city of Nakhchivan (Azerbaijani: Naxçıvan , "Нахчыван", ناخجیوان) is the capital of the eponymous Nakhchivan Autonomous Republic of Azerbaijan, located 450 km west of Baku. The municipality of Nakhchivan consists of the city of Nakhchivan, the settlement of Əliabad and the villages of Başbaşı, Bulqan, Haciniyyət, Qaraçuq, Qaraxanbəyli, Tumbul, Qarağalıq, and Daşduz. It is spread over the foothills of Zangezur Mountains, on the right bank of the Nakhchivan River at an altitude of 873 m above sea level.
Document 3: Başbaşı: Başbaşı (also, Bashbashi and Bash-bashy) is a settlement in the municipality of Nakhchivan in Nakhchivan City, Nakhchivan Autonomous Republic, Azerbaijan. It is located 12 km in the south-west from the Nakhchivan city, on the bank of the Araz River. The station in the railway line of the Baku-Nakhchivan. It was founded during the construction of the railway line (1908) of the Ulukhanlu (present Armenia) - Julfa. It has not permanent population. The salt which have got out from the salt mine of Nakhchivan, were brought to the station of "Bashbashi" via cable. At present, the station is used as a meeting point of the trains. There is a terminal. The settlement covers an area of 3.2 hectares.
Document 4: 1995 Baku Metro fire: The 1995 Baku Metro fire broke out in the subway system of Baku, Azerbaijan's capital, on 28 October 1995, between the stations Ulduz and Nariman Narimanov. According to official figures, the fire killed 286 passengers (including 28 children) and three rescue workers, totaling 289, while 270 people were injured. The fire was deemed to have been caused by electrical malfunction but the possibility of deliberate sabotage was not excluded.
Document 5: Baku: Baku ( , ; Azerbaijani: "Bakı" , ] ) is the capital and largest city of Azerbaijan, as well as the largest city on the Caspian Sea and of the Caucasus region. Baku is located 28 m below sea level, which makes it the lowest lying national capital in the world and also the largest city in the world located below sea level. It is located on the southern shore of the Absheron Peninsula, alongside the Bay of Baku. At the beginning of 2009, Baku's urban population was estimated at just over two million people. Officially, about 25 percent of all inhabitants of the country live in Baku's metropolitan area.
Document 6: Pirşağı: Pirşağı (also, Pirshaga and Pirshagi) is a settlement and municipality 34 km away from the railway station of Baku, Azerbaijan. Located on the northern coast of Absheron, it is in the Sabunchu district of Baku city. It is called Pirshagi (the shah of feasts) because it was initially a settlement where pilgrims gathered. A seaside resort, it is considered one of the most ancient settlements in Absheron. It has a population of 4,826.
Document 7: SOCAR: The State Oil Company of Azerbaijan Republic (SOCAR) (Azerbaijani: "Azərbaycan Respublikası Dövlət Neft Şirkəti" ) is a wholly state-owned national oil and gas company headquartered in Baku, Azerbaijan. The company produces oil and natural gas from onshore and offshore fields in the Azerbaijani section of the Caspian Sea. It operates the country's two oil refineries, one gas processing plant and runs several oil and gas export pipelines throughout the country. It owns fuel filling stations under the "SOCAR" brand in Azerbaijan, Georgia, Ukraine, Romania and Switzerland. The company has about 70,000 employees.
Document 8: Sabarmati Junction railway station: Sabarmati Junction is a junction station under Western Railway and a junction just six kilometers away from main Ahmedabad Railway Station in Gujarat state of India. It is junction on Ahmedabad - Mehsana railway line. It is more famous for Sabarmati Ashram located near it, which was founded by Mahatma Gandhi. Sabarmati serves both metre-gauge track on Mehsana line and main broad-gauge line for all trains departing from Ahmedabad. Sabarmati Metre Gauge Termius has now been named Gandhigram in memory of Mahatma Gandhi. Sabarmati also has special yard for Passenger trains. Sabarmati Railway Station in western part of the city is being proposed to be developed as an additional terminal for departure and termination of Delhi-bound trains. The railway officials said that there are plans to develop Sabarmati railway station as an alternate station of Ahmedabad Railway Station.
Document 9: Gara-Gel State Reserve: Gara-Gel State Reserve or Qaragol State Reserve was established on the area of 240 hectares in 1987 for protection and preservation of rare ecological system of the lake of glacial origin and natural complexes surrounding the water basin. The lake feeds mainly from rains and spring water. Lake Ishigli-Gara-Gel is situated at a height of 2, 658 m above sea level in the southern part of the Karabakh volcanic plateau near the foothills of several mountains with a height of 3, 200-3, 500 m. the lake is a relict water reservoir, which was formed in the crater of an extinct volcano. The length of the lake is 1,950 m, its maximum width is 1, 250 m, length of its coastline is 5, 500 m, maximum depth – 7.8 m, volume of water – 10 million m3, area of the lake 13 km2. Water flow is mainly due to melted snow and rainwater, partially spring water. In terms of botany and geography the Karabakh Plateau is situated between the Caucasian and Armenian-Iran provinces, which determines the specifics of the local flora. The flora of the reserve includes 102 species and subspecies of vascular plants from 68 general and 27 families. The lack of flora is explained by the fact that the reserve covers only the lake, and many rare and endemic species grow beyond the reserve area, but close to its borders. The vegetation of the coastal area of the lake is represented mainly by meadows with the dominance of Trifolium and Tragacantha and Astragalus. The swamp flora and vegetation are limited because of the height of the area. There are only two species of plants in the lake: Polygonum amphibium and Ranunclus. In 1967, a type of Sevan trout, included in the Red Book, was introduced into the lake. The reserve is an inter-republic reserve. The reserve is under occupation. Adjacent to the borders of the reserve there are areas with rare and endangered species of plants such as Euphrasia, Potentilla and others.
Document 10: Hilal railway station: Hilal railway station formerly Istravoz railway station is a railway station located in İzmir, Turkey. It is located east of Basmane next to the famous Hilal Junction on the Izmir-Afyon railway. The station was famous for being located next to the only level crossing in Turkey. The Oriental Railway Company's Alsancak-Aydın Main Line crossed with the Smyrna Cassaba Railway's Basmane-Afyon Main Line. Due to the layout of the tracks, the station was first named "Istravoz railway station" in 1866. "Istravoz" (from Greek σταυρóς) means Cross in Turkish. After the Republic of Turkey was formed in 1923, the station's name was changed to "Hilal" which means 'crescent', due to the majority of the city's population being Muslim. The Hilal subway station, which opened in 2000, is located adjacent to the railway station. When the electrification of the tracks around İzmir started in 2001, the station was closed.
Document 11: Adapazarı railway station: Adapazarı Central Station is the main terminal railway station in the city of Adapazarı. It is the eastern terminus of the Haydarpaşa-Adapazarı Regional, the most heavily used rail service line in Turkey and second most in service frequency. The station is located directly in the city center. The other two stations serving Adapazarı are Mithatpaşa railway station, located in southwestern Adapazarı and Arifye railway station, located in Adapazarı's southern suburb. The station is situated on the north end of the Adapazarı Branch, which connects to the Istanbul––Ankara Main Line at Arifye.
Document 12: Daşduz: Daşduz (also, Dashduz and Dash-duz) is a settlement in the municipality of Nakhchivan in Nakhchivan City, Nakhchivan Autonomous Republic, Azerbaijan. It is located 12 km in the south-west from the Nakhchivan city, on the foothill area. There is no permanent population.
Document 13: Qarğalıq, Nakhchivan: Qarağalıq (also, Garghalyg, Gargalig and Karqalyk) is a settlement in the municipality of Nakhchivan in Nakhchivan City, Nakhchivan Autonomous Republic, Azerbaijan. It is located 7 km in the south-west from the city center, on the bank of the Araz River. The station in the railway line of the Baku-Nakhchivan. It was founded during the construction of the railway line (1908) of the Ulukhanlu (present Armenia) - Julfa. It has not permanent population. At present, the station is used as a meeting point of the trains. There is a terminal.
Document 14: Geography of Azerbaijan: Azerbaijan is situated in the Caucasus region of Eurasia. Three physical features dominate Azerbaijan: the Caspian Sea, whose shoreline forms a natural boundary to the east; the Greater Caucasus mountain range to the north; and the extensive flatlands at the country's center. About the size of Portugal or the state of Maine, Azerbaijan has a total land area of approximately 86,600 square kilometers, less than 1% of the land area of the former Soviet Union. Of the three Transcaucasian states, Azerbaijan has the greatest land area. Special administrative subdivisions are the Nakhchivan Autonomous Republic, which is separated from the rest of Azerbaijan by a strip of Armenian territory, and the Nagorno-Karabakh Autonomous Region, entirely within Azerbaijan. (The status of Nagorno-Karabakh was under negotiation in 1994.) Located in the region of the southern Caucasus Mountains, Azerbaijan borders the Caspian Sea to the east, Georgia and Russia to the north, Iran to the south, and Armenia to the southwest and west. A small part of Nakhchivan also borders Turkey to the northwest. The capital of Azerbaijan is the ancient city of Baku, which has the largest and best harbor on the Caspian Sea and has long been the center of the republic's oil industry.
Document 15: Golra Sharif Railway Museum: Golra Sharif Railway Museum, also known as Pakistan Railways Heritage Museum, is a Railway Museum located near the Sector E-11 of Islamabad, the capital of Pakistan. It is a junction station in Rawalpindi Division of the Pakistan Railways, located at 1,994 feet above sea level, in the southeast of the Margalla Hills and east of the cradle of Gandhara civilization, the ancient city of Taxila. This railway station is the site of a venerated Railway Museum housing the relics and memorabilia associated with railways dating back to the days of the British Raj. The Railways station with its museum is a major attraction for tourists and locals alike and is becoming a major attraction for railway enthusiasts.
ground_truth: Baku