Definition: In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).
Input: Context: The Sydney central business district (also Sydney CBD, and often referred to as "town" or "the City") is the main commercial centre of Sydney, New South Wales, Australia. It extends southwards for about from Sydney Cove, the point of first European settlement in which the Sydney region was initially established. Due to its pivotal role in Australia's early history, it is one of the oldest established areas in the country., Europe is a continent that comprises the westernmost part of Eurasia. Europe is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, and the Mediterranean Sea to the south. To the east and southeast, Europe is generally considered as separated from Asia by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways of the Turkish Straits. Yet the non-oceanic borders of Europea concept dating back to classical antiquityare arbitrary. The primarily physiographic term "continent" as applied to Europe also incorporates cultural and political elements whose discontinuities are not always reflected by the continent's current overland boundaries., The NSW TrainLink H set or OSCAR (Outer Suburban CAR) is a class of electric multiple unit built by UGL Rail, Broadmeadow for CityRail in New South Wales, Australia. They are operated by NSW TrainLink. These sets operate services from Sydney to Hamilton (Newcastle), Springwood and Kiama. The first entered service in December 2006 and the last in December 2012. They are formed into 55 four-carriage sets., New South Wales (abbreviated as NSW) is a state on the east coast of :Australia. It borders Queensland to the north, Victoria to the south, and South Australia to the west. It has a coast line with the Tasman Sea on its east side. The Australian Capital Territory is an enclave within the state. New South Wales' state capital is Sydney, which is also Australia's most populous city. , the estimated population of New South Wales was 7.5 million, making it Australia's most populous state. Just under two-thirds of the state's population, 4.67 million, live in the Greater Sydney area. Inhabitants of New South Wales are referred to as "New South Welshmen"., The Tangara (an Aboriginal Australian word meaning "to go") is a class of electric multiple unit operated by Sydney Trains in Sydney, Australia. The Tangaras were delivered between 1988 and 1995, and are third-generation trains., Australia, officially the Commonwealth of Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. It is the world's sixth-largest country by total area. The neighbouring countries are Papua New Guinea, Indonesia and East Timor to the north; the Solomon Islands and Vanuatu to the north-east; and New Zealand to the south-east. Australia's capital is Canberra, and its largest urban area is Sydney., A central business district (CBD) is the commercial and business centre of a city. In larger cities, it is often synonymous with the city's "financial district". Geographically, it often coincides with the "city centre" or "downtown", but the two concepts are separate: many cities have a central "business" district located away from its commercial or cultural city centre or downtown. Both the CBD and the city centre or downtown may also coincide with the central activities district., The South Coast Line is an intercity rail service operated by NSW TrainLink that services the Illawarra region of New South Wales, Australia. The service runs from , and runs the entire length of the eponymous South Coast railway line to . The service also runs along the Eastern Suburbs railway line at peak hours and the Port Kembla railway line to . It is operated with NSW TrainLink H sets and Sydney Trains T sets, with Endeavour railcars operating the service on the non-electrified line between and Bomaderry., The Eastern Suburbs Railway is a commuter railway line in Sydney constructed in the 1970s. It is operated by Sydney Trains and has stations at Martin Place, Kings Cross, Edgecliff and Bondi Junction. In addition, it has dedicated platforms at Town Hall, Central and Redfern stations. All of these stations are underground. The Eastern Suburbs railway connects with the Illawarra line at Erskineville, forming the Eastern Suburbs & Illawarra Line. The line features turnbacks at Central, Martin Place and Bondi Junction. There is also a rarely used cross-over or 'turnout' at Edgecliff. It operates a service every 3 to 5 minutes during peak hours, 8 to 10 minutes at other times and 8 to 10 minutes on weekends., Sydney Cove is a small bay on the southern shore of Sydney Harbour, one of several harbours in Port Jackson, on the coast of Sydney, New South Wales, Australia., Martin Place railway station is located on the Eastern Suburbs line , serving the Sydney central business district . Named after Martin Place , it is served by Sydney Trains T4 Eastern Suburbs & Illawarra Line services and NSW TrainLink South Coast Line services ., Illawarra is a region in the Australian state of New South Wales. It is a coastal region situated immediately south of Sydney and north of the Shoalhaven or South Coast region. It encompasses the cities of Wollongong, Shellharbour, the town of Kiama and the shire of Wingecarribee., Subject: martin place railway station, Relation: connecting_line, Options: (A) 3 (B) a (C) coast line (D) eastern suburbs railway line (E) ocean
Output:
eastern suburbs railway line