Problem: Armenians:

The Armenian Genocide caused widespread emigration that led to the settlement of Armenians in various countries in the world. Armenians kept to their traditions and certain diasporans rose to fame with their music. In the post-Genocide Armenian community of the United States, the so-called "kef" style Armenian dance music, using Armenian and Middle Eastern folk instruments (often electrified/amplified) and some western instruments, was popular. This style preserved the folk songs and dances of Western Armenia, and many artists also played the contemporary popular songs of Turkey and other Middle Eastern countries from which the Armenians emigrated. Richard Hagopian is perhaps the most famous artist of the traditional "kef" style and the Vosbikian Band was notable in the 40s and 50s for developing their own style of "kef music" heavily influenced by the popular American Big Band Jazz of the time. Later, stemming from the Middle Eastern Armenian diaspora and influenced by Continental European (especially French) pop music, the Armenian pop music genre grew to fame in the 60s and 70s with artists such as Adiss Harmandian and Harout Pamboukjian performing to the Armenian diaspora and Armenia. Also with artists such as Sirusho, performing pop music combined with Armenian folk music in today's entertainment industry. Other Armenian diasporans that rose to fame in classical or international music circles are world-renowned French-Armenian singer and composer Charles Aznavour, pianist Sahan Arzruni, prominent opera sopranos such as Hasmik Papian and more recently Isabel Bayrakdarian and Anna Kasyan. Certain Armenians settled to sing non-Armenian tunes such as the heavy metal band System of a Down (which nonetheless often incorporates traditional Armenian instrumentals and styling into their songs) or pop star Cher. Ruben Hakobyan (Ruben Sasuntsi) is a well recognized Armenian ethnographic and patriotic folk singer who has achieved widespread national recognition due to his devotion to Armenian folk music and exceptional talent. In the Armenian diaspora, Armenian revolutionary songs are popular with the youth.[citation needed] These songs encourage Armenian patriotism and are generally about Armenian history and national heroes.

Who is the most popular member of System of a Down?
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A: unanswerable


Problem: Most copper is mined or extracted as copper sulfides from large open pit mines in porphyry copper deposits that contain 0.4 to 1.0% copper. Examples include Chuquicamata in Chile, Bingham Canyon Mine in Utah, United States and El Chino Mine in New Mexico, United States. According to the British Geological Survey, in 2005, Chile was the top mine producer of copper with at least one-third world share followed by the United States, Indonesia and Peru. Copper can also be recovered through the in-situ leach process. Several sites in the state of Arizona are considered prime candidates for this method. The amount of copper in use is increasing and the quantity available is barely sufficient to allow all countries to reach developed world levels of usage.
What percentage of copper do the deposits have that are extracted?
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Answer: 0.4 to 1.0% copper


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
LaserDiscs potentially had a much longer lifespan than videocassettes. Because the discs were read optically instead of magnetically, no physical contact needs to be made between the player and the disc, except for the player's clamp that holds the disc at its center as it is spun and read. As a result, playback would not wear the information-bearing part of the discs, and properly manufactured LDs would theoretically last beyond one's lifetime. By contrast, a VHS tape held all of its picture and sound information on the tape in a magnetic coating which is in contact with the spinning heads on the head drum, causing progressive wear with each use (though later in VHS's lifespan, engineering improvements allowed tapes to be made and played back without contact). Also, the tape was thin and delicate, and it was easy for a player mechanism, especially on a low quality or malfunctioning model, to mishandle the tape and damage it by creasing it, frilling (stretching) its edges, or even breaking it.
Where do VHS tapes store their information?
A: magnetic coating


Context and question: With limited resources Muawiyah went about creating allies. Muawiyah married Maysum the daughter of the chief of the Kalb tribe, that was a large Jacobite Christian Arab tribe in Syria. His marriage to Maysum was politically motivated. The Kalb tribe had remained largely neutral when the Muslims first went into Syria. After the plague that killed much of the Muslim Army in Syria, by marrying Maysum, Muawiyah started to use the Jacobite Christians, against the Romans. Muawiya's wife Maysum (Yazid's mother) was also a Jacobite Christian. With limited resources and the Byzantine just over the border, Muawiyah worked in cooperation with the local Christian population. To stop Byzantine harassment from the sea during the Arab-Byzantine Wars, in 649 Muawiyah set up a navy; manned by Monophysitise Christians, Copts and Jacobite Syrian Christians sailors and Muslim troops.
Who used the Jacobite Christians against the Muslims?
Answer: unanswerable


Question: Madaris were largely centred on the study of fiqh (Islamic jurisprudence). The ijāzat al-tadrīs wa-al-iftāʼ ("licence to teach and issue legal opinions") in the medieval Islamic legal education system had its origins in the 9th century after the formation of the madhāhib (schools of jurisprudence). George Makdisi considers the ijāzah to be the origin of the European doctorate. However, in an earlier article, he considered the ijāzah to be of "fundamental difference" to the medieval doctorate, since the former was awarded by an individual teacher-scholar not obliged to follow any formal criteria, whereas the latter was conferred on the student by the collective authority of the faculty. To obtain an ijāzah, a student "had to study in a guild school of law, usually four years for the basic undergraduate course" and ten or more years for a post-graduate course. The "doctorate was obtained after an oral examination to determine the originality of the candidate's theses", and to test the student's "ability to defend them against all objections, in disputations set up for the purpose." These were scholarly exercises practised throughout the student's "career as a graduate student of law." After students completed their post-graduate education, they were awarded ijazas giving them the status of faqīh 'scholar of jurisprudence', muftī 'scholar competent in issuing fatwās', and mudarris 'teacher'.
Is there an answer to this question:  When did Islamic law school end?

Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Napoleon's set of civil laws, the Code Civil—now often known as the Napoleonic Code—was prepared by committees of legal experts under the supervision of Jean Jacques Régis de Cambacérès, the Second Consul. Napoleon participated actively in the sessions of the Council of State that revised the drafts. The development of the code was a fundamental change in the nature of the civil law legal system with its stress on clearly written and accessible law. Other codes ("Les cinq codes") were commissioned by Napoleon to codify criminal and commerce law; a Code of Criminal Instruction was published, which enacted rules of due process.
What was the contemporary term for the set of civil laws created by Napoleon?
A:
the Code Civil