Input: Railway electrification system
In the UK, the London, Brighton and South Coast Railway pioneered overhead electrification of its suburban lines in London, London Bridge to Victoria being opened to traffic on 1 December 1909. Victoria to Crystal Palace via Balham and West Norwood opened in May 1911. Peckham Rye to West Norwood opened in June 1912. Further extensions were not made owing to the First World War. Two lines opened in 1925 under the Southern Railway serving Coulsdon North and Sutton railway station. The lines were electrified at 6.7 kV 25 Hz. It was announced in 1926 that all lines were to be converted to DC third rail and the last overhead electric service ran in September 1929.

What was the cause of lines not being extended?
Output: the First World War


Input: Article: The Sun, during the Miners' strike of 1984–85, supported the police and the Thatcher government against the striking NUM miners, and in particular the union's president, Arthur Scargill. On 23 May 1984, The Sun prepared a front page with the headline "Mine Führer" and a photograph of Scargill with his arm in the air, a pose which made him look as though he was giving a Nazi salute. The print workers at The Sun refused to print it. The Sun strongly supported the April 1986 bombing of Libya by the US, which was launched from British bases. Several civilians were killed during the bombing. Their leader was "Right Ron, Right Maggie". That year, Labour MP Clare Short attempted in vain to persuade Parliament to outlaw the pictures on Page Three and gained opprobrium from the newspaper for her stand.

Now answer this question: Who was president of the Miners' union?

Output: Arthur Scargill


Article: True exhibition games between opposing colleges at the highest level do not exist in college football; due to the importance of opinion polling in the top level of college football, even exhibition games would not truly be exhibitions because they could influence the opinions of those polled. Intramural games are possible because a team playing against itself leaves little ability for poll participants to make judgments, and at levels below the Football Bowl Subdivision (FBS), championships are decided by objective formulas and thus those teams can play non-league games without affecting their playoff hopes.

Question: What is a game called in which a team plays against itself?
Ans: Intramural


Here is a question about this article: The war has been described as the first "world war", although this label was also given to various earlier conflicts like the Eighty Years' War, the Thirty Years' War, the War of the Spanish Succession and the War of the Austrian Succession, and to later conflicts like the Napoleonic Wars. The term "Second Hundred Years' War" has been used in order to describe the almost continuous level of world-wide conflict during the entire 18th century, reminiscent of the more famous and compact struggle of the 14th century.
What is the answer to this question: What does the term "Second Hundred Years' War" describe?
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So... The term "Second Hundred Years' War" has been used in order to describe the almost continuous level of world-wide conflict during the entire 18th century,


The problem: Answer a question about this article:
Returning World War II veterans created a post-war economic boom and the development of large housing tracts in eastern Queens. New York emerged from the war unscathed as the leading city of the world, with Wall Street leading America's place as the world's dominant economic power. The United Nations Headquarters was completed in 1952, solidifying New York's global geopolitical influence, and the rise of abstract expressionism in the city precipitated New York's displacement of Paris as the center of the art world.
The headquarters what organization was done being build in 1952 in New York?
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The answer: United Nations


The problem: Answer a question about this article:
An earthquake emergency relief team of 184 people (consisting of 12 people from the State Seismological Bureau, 150 from the Beijing Military Area Command, and 22 from the Armed Police General Hospital) left Beijing from Nanyuan Airport late May 12 in two military transport planes to travel to Wenchuan County.
How many soldiers were from the Beijing Military?
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The answer:
150