Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In the late 12th-century, a school of polyphony was established at the Notre-Dame. A group of Parisian aristocrats, known as Trouveres, became known for their poetry and songs. Troubadors were also popular. During the reign of Francois I, the lute became popular in the French court, and a national musical printing house was established. During the Renaissance era, the French Boleroroyals "disported themselves in masques, ballets, allegorical dances, recitals, and opera and comedy". Baroque-era composers include Jean-Baptiste Lully, Jean-Philippe Rameau, and Francois Couperin and were popular. The Conservatoire de Musique de Paris was founded in 1795. By 1870, Paris had become an important centre for symphony, ballet and operatic music. Romantic-era composers (in Paris) include Hector Berlioz (La Symphonie fantastique), Charles Gounod (Faust), Camille Saint-Saens (Samson et Delilah), Leo Delibes (Lakme) and Jules Massenet (Thais), among others. Georges Bizet's Carmen premiered 3 March 1875. Carmen has since become one of the most popular and frequently-performed operas in the classical canon; Impressionist composers Claude Debussy ((La Mer) and Maurice Ravel (Bolero) also made significant contributions to piano (Clair de lune, Miroirs), orchestra, opera (Palleas et Melisande), and other musical forms. Foreign-born composers have made their homes in Paris and have made significant contributions both with their works and their influence. They include Frederic Chopin (Poland), Franz Liszt (Hungary), Jacques Offenbach (Germany), and Igor Stravinsky (Russia).
In what year was the Conservatoire de Musique de Paris founded?
A: 1795

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
But the peace in the state did not last long, the elections of 1875 caused new hostilities. Angel Trias led a new movement against the government in June 1875 and maintained control over the government until September 18, 1875 when Donato Guerra the orchestrator of the Revolution of the North was captured. Donato Guerra was assassinated in a suburb of Chihuahua City where he was incarcerated for conspiring with Angel Trias. During October 1875 several locations were controlled by rebel forces, but the government finally regained control on November 25, 1875.
Which orchestrator of the Revolution of the North was captured?
A: Donato Guerra

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Portugal has several summer music festivals, such as Festival Sudoeste in Zambujeira do Mar, Festival de Paredes de Coura in Paredes de Coura, Festival Vilar de Mouros near Caminha, Boom Festival in Idanha-a-Nova Municipality, Optimus Alive!, Sumol Summer Fest in Ericeira, Rock in Rio Lisboa and Super Bock Super Rock in Greater Lisbon. Out of the summer season, Portugal has a large number of festivals, designed more to an urban audience, like Flowfest or Hip Hop Porto. Furthermore, one of the largest international Goa trance festivals takes place in central Portugal every two years, the Boom Festival, that is also the only festival in Portugal to win international awards: European Festival Award 2010 Green'n'Clean Festival of the Year and the Greener Festival Award Outstanding 2008 and 2010. There is also the student festivals of Queima das Fitas are major events in a number of cities across Portugal. In 2005, Portugal held the MTV Europe Music Awards, in Pavilhao Atlantico, Lisbon.
What international awards have been won by the Boom Festival?
A: European Festival Award 2010 Green'n'Clean Festival of the Year and the Greener Festival Award Outstanding 2008 and 2010

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
As of 18 June 2012, the ECB in total had spent 212.1bn (equal to 2.2% of the Eurozone GDP) for bond purchases covering outright debt, as part of its Securities Markets Programme (SMP) running since May 2010. On 6 September 2012, the ECB announced a new plan for buying bonds from eurozone countries. The duration of the previous SMP was temporary, while the Outright Monetary Transactions (OMT) programme has no ex-ante time or size limit. On 4 September 2014, the bank went further by announcing it would buy bonds and other debt instruments primarily from banks in a bid to boost the availability of credit for businesses.
How long was the duration of the Securities Markets Programme to last?
A:
temporary