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Following this battle, Ali fought a battle against Muawiyah, known as the Battle of Siffin. The battle was stopped before either side had achieved victory, and the two parties agreed to arbitrate their dispute. After the battle Amr ibn al-As was appointed by Muawiyah as an arbitrator, and Ali appointed Abu Musa Ashaari. Seven months later, in February 658, the two arbitrators met at Adhruh, about 10 miles north west of Maan in Jordon. Amr ibn al-As convinced Abu Musa Ashaari that both Ali and Muawiyah should step down and a new Caliph be elected. Ali and his supporters were stunned by the decision which had lowered the Caliph to the status of the rebellious Muawiyah I. Ali was therefore outwitted by Muawiyah and Amr. Ali refused to accept the verdict and found himself technically in breach of his pledge to abide by the arbitration. This put Ali in a weak position even amongst his own supporters. The most vociferous opponents in Ali's camp were the very same people who had forced Ali into the ceasefire. They broke away from Ali's force, rallying under the slogan, "arbitration belongs to God alone." This group came to be known as the Kharijites ("those who leave"). In 659 Ali's forces and the Kharijites met in the Battle of Nahrawan. Although Ali won the battle, the constant conflict had begun to affect his standing, and in the following years some Syrians seem to have acclaimed Muawiyah as a rival caliph.

Who was appointed arbitrator by Ali?
Answer: Abu Musa Ashaari


Problem: Artifacts from the Paleolithic suggest that the moon was used to reckon time as early as 6,000 years ago. Lunar calendars were among the first to appear, either 12 or 13 lunar months (either 354 or 384 days). Without intercalation to add days or months to some years, seasons quickly drift in a calendar based solely on twelve lunar months. Lunisolar calendars have a thirteenth month added to some years to make up for the difference between a full year (now known to be about 365.24 days) and a year of just twelve lunar months. The numbers twelve and thirteen came to feature prominently in many cultures, at least partly due to this relationship of months to years. Other early forms of calendars originated in Mesoamerica, particularly in ancient Mayan civilization. These calendars were religiously and astronomically based, with 18 months in a year and 20 days in a month.
Which calendars were among the first to appear?
The answer is the following: Lunar calendars


Luminous efficacy of a light source may be defined in two ways. The radiant luminous efficacy (LER) is the ratio of the visible light flux emitted (the luminous flux) to the total power radiated over all wavelengths. The source luminous efficacy (LES) is the ratio of the visible light flux emitted (the luminous flux) to the total power input to the source, such as a lamp. Visible light is measured in lumens, a unit which is defined in part by the differing sensitivity of the human eye to different wavelengths of light. Not all wavelengths of visible electromagnetic energy are equally effective at stimulating the human eye; the luminous efficacy of radiant energy (LER) is a measure of how well the distribution of energy matches the perception of the eye. The units of luminous efficacy are "lumens per watt" (lpw). The maximum LER possible is 683 lm/W for monochromatic green light at 555 nanometers wavelength, the peak sensitivity of the human eye.
What does the acronym LER refer to?
radiant luminous efficacy


Input: Near East
The change is evident in the reports of influential British travellers to the Balkans. In 1894, Sir Henry Norman, 1st Baronet, a journalist, travelled to the Far East, afterwards writing a book called The Peoples and Politics of the Far East, which came out in 1895. By "Far East" he meant Siberia, China, Japan, Korea, Siam and Malaya. As the book was a big success, he was off to the Balkan states with his wife in 1896 to develop detail for a sequel, The People and Politics of the Near East, which Scribners planned to publish in 1897. Mrs. Norman, a writer herself, wrote glowing letters of the home and person of Mme. Zakki, "the wife of a Turkish cabinet minister," who, she said, was a cultivated woman living in a country home full of books. As for the natives of the Balkans, they were "a semi-civilized people."

What book did Sir Henry Norman write after traveling to the Far East?
Output: The Peoples and Politics of the Far East


Input: Article: The Louvre was the world's most visited art museum in 2014, with 9.3 million visitors. Its treasures include the Mona Lisa (La Joconde) and the Venus de Milo statue. Starkly apparent with its service-pipe exterior, the Centre Georges Pompidou, the second-most visited art museum in Paris, also known as Beaubourg, houses the Musée National d'Art Moderne. The Musée d'Orsay, in the former Orsay railway station, was the third-most visited museum in the city in 2014; it displays French art of the 19th century, including major collections of the Impressionists and Post-Impressionists. The original building - a railway station - was constructed for the Universal Exhibition of 1900. The Musée du quai Branly was the fourth-most visited national museum in Paris in 2014; it displays art objects from Africa, Asia, Oceania, and the Americas. The Musée national du Moyen Âge, or Cluny Museum, presents Medieval art, including the famous tapestry cycle of The Lady and the Unicorn. The Guimet Museum, or Musée national des arts asiatiques, has one of the largest collections of Asian art in Europe. There are also notable museums devoted to individual artists, including the Picasso Museum the Rodin Museum, and the Musée national Eugène Delacroix.

Now answer this question: Where is the Mona Lisa housed?

Output: The Louvre


Problem: According to the International Organization for Migration, Nigeria witnessed a dramatic increase in remittances sent home from overseas Nigerians, going from USD 2.3 billion in 2004 to 17.9 billion in 2007. The United States accounts for the largest portion of official remittances, followed by the United Kingdom, Italy, Canada, Spain and France. On the African continent, Egypt, Equatorial Guinea, Chad, Libya and South Africa are important source countries of remittance flows to Nigeria, while China is the biggest remittance-sending country in Asia.
Which country has Nigerians sending the second-most money home?
The answer is the following:
United Kingdom