Problem: Valencia:

The crisis deepened during the 17th century with the expulsion in 1609 of the Jews and the Moriscos, descendants of the Muslim population that converted to Christianity under threat of exile from Ferdinand and Isabella in 1502. From 1609 through 1614, the Spanish government systematically forced Moriscos to leave the kingdom for Muslim North Africa. They were concentrated in the former Kingdom of Aragon, where they constituted a fifth of the population, and the Valencia area specifically, where they were roughly a third of the total population. The expulsion caused the financial ruin of some of the nobility and the bankruptcy of the Taula de Canvi in 1613. The Crown endeavoured to compensate the nobles, who had lost much of their agricultural labour force; this harmed the economy of the city for generations to come. Later, during the so-called Catalan Revolt (1640–1652), Valencia contributed to the cause of Philip IV with militias and money, resulting in a period of further economic hardship exacerbated by the arrival of troops from other parts of Spain.

What proportion of the Valencia area's population were the Moriscos?
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A: a third


Problem: Cubist sculpture developed in parallel to Cubist painting. During the autumn of 1909 Picasso sculpted Head of a Woman (Fernande) with positive features depicted by negative space and vice versa. According to Douglas Cooper: "The first true Cubist sculpture was Picasso's impressive Woman's Head, modeled in 1909–10, a counterpart in three dimensions to many similar analytical and faceted heads in his paintings at the time." These positive/negative reversals were ambitiously exploited by Alexander Archipenko in 1912–13, for example in Woman Walking. Joseph Csaky, after Archipenko, was the first sculptor in Paris to join the Cubists, with whom he exhibited from 1911 onwards. They were followed by Raymond Duchamp-Villon and then in 1914 by Jacques Lipchitz, Henri Laurens and Ossip Zadkine.
When was Leg of a Woman sculpted? 
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The region was dominated by Bantu-speaking tribes, who built trade links leading into the Congo River basin. Congo-Brazzaville was formerly part of the French colony of Equatorial Africa. Upon independence in 1960, the former colony of French Congo became the Republic of the Congo. The People's Republic of the Congo was a Marxist–Leninist one-party state from 1970 to 1991. Multi-party elections have been held since 1992, although a democratically elected government was ousted in the 1997 Republic of the Congo Civil War and President Denis Sassou Nguesso has ruled for 26 of the past 36 years.
Who is the ruler of the Congo?
A: Denis Sassou Nguesso


Context and question: Greece's rail network is estimated to be at 2,548 km. Rail transport in Greece is operated by TrainOSE, a subsidiary of the Hellenic Railways Organization (OSE). Most of the country's network is standard gauge (1,565 km), while the country also has 983 km of narrow gauge. A total of 764 km of rail are electrified. Greece has rail connections with Bulgaria, the Republic of Macedonia and Turkey. A total of three suburban railway systems (Proastiakos) are in operation (in Athens, Thessaloniki and Patras), while one metro system is operational in Athens with another under construction.
Who is TrainOSE an owner of?
Answer: unanswerable


Question: The party was a member of the Labour and Socialist International between 1923 and 1940. Since 1951 the party has been a member of the Socialist International, which was founded thanks to the efforts of the Clement Attlee leadership. However, in February 2013, the Labour Party NEC decided to downgrade participation to observer membership status, "in view of ethical concerns, and to develop international co-operation through new networks". Labour was a founding member of the Progressive Alliance international founded in co-operation with the Social Democratic Party of Germany and other social-democratic parties on 22 May 2013.
Is there an answer to this question: What was the party a member of before 1923?

Answer: unanswerable


QUES: The state song was not composed until 21 years after statehood, when a musical troupe led by Joseph E. Howard stopped in Butte in September 1910. A former member of the troupe who lived in Butte buttonholed Howard at an after-show party, asking him to compose a song about Montana and got another partygoer, the city editor for the Butte Miner newspaper, Charles C. Cohan, to help. The two men worked up a basic melody and lyrics in about a half-hour for the entertainment of party guests, then finished the song later that evening, with an arrangement worked up the following day. Upon arriving in Helena, Howard's troupe performed 12 encores of the new song to an enthusiastic audience and the governor proclaimed it the state song on the spot, though formal legislative recognition did not occur until 1945. Montana is one of only three states to have a "state ballad", "Montana Melody", chosen by the legislature in 1983. Montana was the first state to also adopt a State Lullaby.

When was the state song composed?
What is the answer?
ANS:
1910