In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.

Input: Consider Input: Question: What is the definition of the Werther effect? Passage:In July 1994, two students of Taipei First Girls' High School committed suicide by charcoal-burning in a hotel in Su'ao, Yilan with a note that didn't state the reason clearly, even though that it was suspected in some mass media that they were a lesbian couple. In November 1998, a middle-aged woman in Hong Kong died by suicide using this method inside her small, sealed bedroom. She had a chemical engineering background. Hong Kong was suffering from an economic depression at the time, and suicide in general was increasing. After the details of this suicide were highly publicised by local mass media, many others killed themselves in this way (an example of the Werther effect). Within two months, charcoal-burning had become the third major suicide killer in Hong Kong. Charcoal-burning suicide accounted for 1.7% of Hong Kong suicides in 1998 and 10.1% in 1999. By 2001, it had surpassed hanging as the second most-common method of suicide in Hong Kong (second only to jumping), accounting for about 25% of all suicide deaths. The method has since spread to mainland China, Taiwan and Japan.
 Links: a. Hong Kong b. Jumper (person) c. Copycat suicide d. Chemical engineering

Output: c


Input: Consider Input: Question: What current countries were part of the Ottoman Empire? Passage:Crimea: The Last Crusade is a panoramic history of the Crimean War of 1853–56. Drawing extensively from Russian, French and Ottoman as well as British archives, it combines military, diplomatic, political and cultural history, examining how the war left a lasting mark on the national consciousness of Britain, France, Russia and Turkey. Figes sets the war in the context of the Eastern Question, the diplomatic and political problems caused by the decay of the Ottoman Empire. In particular, he emphasises the importance of the religious struggle between Russia as the defender of the Orthodox and France as the protector of the Catholics in the Ottoman Empire. He frames the war within a longer history of religious conflict between Christians and Muslims in the Balkans, southern Russia and the Caucasus that continues to this day. Figes stresses the religious motive of the Tsar Nicholas I in his bold decision to go to war, arguing that Nicholas was swayed by the ideas of the Pan-Slavs to invade Moldavia and Wallachia and encourage Slav revolts against the Ottomans, despite his earlier adherence to the Legitimist principles of the Holy Alliance. He also shows how France and Britain were drawn into the war by popular ideas of Russophobia that swept across Europe in the wake of the Revolutions of 1830 and 1848. As one reviewer wrote, Figes shows "how the cold war of the Soviet era froze over fundamental fault lines that had opened up in the 19th century."
 Links: a. Crimean War b. Ottoman Empire c. Catholic Church d. Pan-Slavism

Output: b


Input: Consider Input: Question: Which river involved in shipbuilding in the North East region of England is the longest? Passage:In February 1984, Nissan and the UK government signed an agreement to build a car plant in the UK. The following month a greenfield site in Sunderland, Tyne and Wear, was chosen. As an incentive the land was offered to Nissan at agricultural prices; around £1,800 per acre. The North East region of England had recently undergone a period of industrial decline, with the closure of most of the shipyards on the Wear and Tyne, and the closure of many coal mines on the once prosperous Durham coalfield. The high unemployment this caused meant Nissan had a large, eager, manufacturing-skilled workforce to draw upon. The site, once the Sunderland Airfield (formerly RAF Usworth), was close to ports on the Wear and Tyne, within easy driving distance of the international Newcastle Airport, and close to major trunk roads such as the A1 and A19, as well as major ports for the export of vehicles. The established company became known as Nissan Motor Manufacturing (UK) Ltd, or NMUK. A ground breaking ceremony took place in July, and work began on the site in November 1984, by building contractors Sir Robert McAlpine.
 Links: a. River Tyne b. Durham, England c. River Wear d. Coal mining


Output: c