Problem: Mandolin:

Antonio Vivaldi composed a mandolin concerto (Concerto in C major Op.3 6) and two concertos for two mandolins and orchestra. Wolfgang Amadeus Mozart placed it in his 1787 work Don Giovanni and Beethoven created four variations of it. Antonio Maria Bononcini composed La conquista delle Spagne di Scipione Africano il giovane in 1707 and George Frideric Handel composed Alexander Balus in 1748. Others include Giovani Battista Gervasio (Sonata in D major for Mandolin and Basso Continuo), Giuseppe Giuliano (Sonata in D major for Mandolin and Basso Continuo), Emanuele Barbella (Sonata in D major for Mandolin and Basso Continuo), Domenico Scarlatti (Sonata n.54 (K.89) in D minor for Mandolin and Basso Continuo), and Addiego Guerra (Sonata in G major for Mandolin and Basso Continuo).

Who composed the Concerto in C Major Op 3 6?
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A: Antonio Vivaldi

Problem: The death penalty is sought and applied more often in some jurisdictions, not only between states but within states. A 2004 Cornell University study showed that while 2.5 percent of murderers convicted nationwide were sentenced to the death penalty, in Nevada 6 percent were given the death penalty. Texas gave 2 percent of murderers a death sentence, less than the national average. Texas, however, executed 40 percent of those sentenced, which was about four times higher than the national average. California had executed only 1 percent of those sentenced.
What percentage of murderers in the United States aren't given a death sentence?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Another important factor is the apparent consensus among Western great powers that military force is no longer an effective tool of resolving disputes among their peers. This "subset" of great powers France, Germany, Japan, the United Kingdom and the United States consider maintaining a "state of peace" as desirable. As evidence, Baron outlines that since the Cuban missile crisis (1962) during the Cold War, these influential Western nations have resolved all disputes among the great powers peacefully at the United Nations and other forums of international discussion.
What formerly effective tool for international disputes is no longer effective among peer powers?
A: military force

Context and question: Patent infringement typically is caused by using or selling a patented invention without permission from the patent holder. The scope of the patented invention or the extent of protection is defined in the claims of the granted patent. There is safe harbor in many jurisdictions to use a patented invention for research. This safe harbor does not exist in the US unless the research is done for purely philosophical purposes, or in order to gather data in order to prepare an application for regulatory approval of a drug. In general, patent infringement cases are handled under civil law (e.g., in the United States) but several jurisdictions incorporate infringement in criminal law also (for example, Argentina, China, France, Japan, Russia, South Korea).
What type of cases in the US are handled by criminal law?
Answer: unanswerable

Question: The political turmoil continued. John began to explore an alliance with the French king Philip II, freshly returned from the crusade. John hoped to acquire Normandy, Anjou and the other lands in France held by Richard in exchange for allying himself with Philip. John was persuaded not to pursue an alliance by his mother. Longchamp, who had left England after Walter's intervention, now returned, and argued that he had been wrongly removed as justiciar. John intervened, suppressing Longchamp's claims in return for promises of support from the royal administration, including a reaffirmation of his position as heir to the throne. When Richard still did not return from the crusade, John began to assert that his brother was dead or otherwise permanently lost. Richard had in fact been captured en route to England by the Duke of Austria and was handed over to Emperor Henry VI, who held him for ransom. John seized the opportunity and went to Paris, where he formed an alliance with Philip. He agreed to set aside his wife, Isabella of Gloucester, and marry Philip's sister, Alys, in exchange for Philip's support. Fighting broke out in England between forces loyal to Richard and those being gathered by John. John's military position was weak and he agreed to a truce; in early 1194 the king finally returned to England, and John's remaining forces surrendered. John retreated to Normandy, where Richard finally found him later that year. Richard declared that his younger brother despite being 27 years old was merely "a child who has had evil counsellors" and forgave him, but removed his lands with the exception of Ireland.
Is there an answer to this question: When did the king return to England?

Answer: 1194

New York is the most important source of political fundraising in the United States, as four of the top five ZIP codes in the nation for political contributions are in Manhattan. The top ZIP code, 10021 on the Upper East Side, generated the most money for the 2004 presidential campaigns of George W. Bush and John Kerry. The city has a strong imbalance of payments with the national and state governments. It receives 83 cents in services for every $1 it sends to the federal government in taxes (or annually sends $11.4 billion more than it receives back). The city also sends an additional $11 billion more each year to the state of New York than it receives back.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Four-fifths of the ZIP codes that provide the highest amount of political contributions in the United States are located in what borough?
Ah, so..
Manhattan