Problem: Valencia:

The dictatorship of Franco forbade political parties and began a harsh ideological and cultural repression countenanced and sometimes even led by the Church. The financial markets were destabilised, causing a severe economic crisis that led to rationing. A black market in rationed goods existed for over a decade. The Francoist administrations of Valencia silenced publicity of the catastrophic consequences of the floods of 1949 with the attendant dozens of deaths, but could not do the same after the even more tragic flood of 1957 when the river Turia overflowed its banks again, killing many Valencians (officially, eighty-one died; the actual figure is not known). To prevent further disasters, the river was eventually diverted to a new course. The old river bed was abandoned for years, and successive Francoist mayors proposed making it a motorway, but that option was finally rejected with the advent of democracy and fervent neighbourhood protests. The river was divided in two at the western city limits (Plan Sur de Valencia), and diverted southwards along a new course that skirts the city, before meeting the Mediterranean. The old course of the river continues, dry, through the city centre, almost to the sea. The old riverbed is now a verdant sunken park called the 'Garden of the Turia' (Jardi del Turia or Jardin del Turia) that allows cyclists and pedestrians to traverse much of the city without the use of roads; overhead bridges carry motor traffic across the park.

What suggested use for the river bed was rejected?
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A: motorway

Problem: The task of organizing the U.S. Army commenced in 1775. In the first one hundred years of its existence, the United States Army was maintained as a small peacetime force to man permanent forts and perform other non-wartime duties such as engineering and construction works. During times of war, the U.S. Army was augmented by the much larger United States Volunteers which were raised independently by various state governments. States also maintained full-time militias which could also be called into the service of the army.
Who dismantled the United States Volunteers?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The concept of a group arose from the study of polynomial equations, starting with Evariste Galois in the 1830s. After contributions from other fields such as number theory and geometry, the group notion was generalized and firmly established around 1870. Modern group theoryan active mathematical disciplinestudies groups in their own right.a["] To explore groups, mathematicians have devised various notions to break groups into smaller, better-understandable pieces, such as subgroups, quotient groups and simple groups. In addition to their abstract properties, group theorists also study the different ways in which a group can be expressed concretely (its group representations), both from a theoretical and a computational point of view. A theory has been developed for finite groups, which culminated with the classification of finite simple groups announced in 1983.aa["] Since the mid-1980s, geometric group theory, which studies finitely generated groups as geometric objects, has become a particularly active area in group theory.
When was announcement for the classification of finite simple groups?
A: 1983

Context and question: The last decades of the 19th century saw concerted political campaigns for Irish home rule. Ireland had been united with Britain into the United Kingdom of Great Britain and Ireland with the Act of Union 1800 after the Irish Rebellion of 1798, and had suffered a severe famine between 1845 and 1852. Home rule was supported by the British Prime minister, William Gladstone, who hoped that Ireland might follow in Canada's footsteps as a Dominion within the empire, but his 1886 Home Rule bill was defeated in Parliament. Although the bill, if passed, would have granted Ireland less autonomy within the UK than the Canadian provinces had within their own federation, many MPs feared that a partially independent Ireland might pose a security threat to Great Britain or mark the beginning of the break-up of the empire. A second Home Rule bill was also defeated for similar reasons. A third bill was passed by Parliament in 1914, but not implemented because of the outbreak of the First World War leading to the 1916 Easter Rising.
When was the Easter Rising?
Answer: 1916

Question: Vocal music in the Renaissance is noted for the flourishing of an increasingly elaborate polyphonic style. The principal liturgical forms which endured throughout the entire Renaissance period were masses and motets, with some other developments towards the end, especially as composers of sacred music began to adopt secular forms (such as the madrigal) for their own designs. Towards the end of the period, the early dramatic precursors of opera such as monody, the madrigal comedy, and the intermedio are seen.
Is there an answer to this question: Vocal music in the Renaissance is noted for an increasingly elaborate what?

Answer: polyphonic style

Much of the legislative style was adapted from the Roman Law Code of Justinian. As a result, Roman ecclesiastical courts tend to follow the Roman Law style of continental Europe with some variation, featuring collegiate panels of judges and an investigative form of proceeding, called "inquisitorial", from the Latin "inquirere", to enquire. This is in contrast to the adversarial form of proceeding found in the common law system of English and U.S. law, which features such things as juries and single judges.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What word characterizes the type of procedure found in American and British courts?
Ah, so..
adversarial