Problem: Greeks:

The total number of Greeks living outside Greece and Cyprus today is a contentious issue. Where Census figures are available, they show around 3 million Greeks outside Greece and Cyprus. Estimates provided by the SAE - World Council of Hellenes Abroad put the figure at around 7 million worldwide. According to George Prevelakis of Sorbonne University, the number is closer to just below 5 million. Integration, intermarriage, and loss of the Greek language influence the self-identification of the Omogeneia. Important centres of the New Greek Diaspora today are London, New York, Melbourne and Toronto. In 2010, the Hellenic Parliament introduced a law that enables Diaspora Greeks in Greece to vote in the elections of the Greek state. This law was later repealed in early 2014.

How many Greeks do they believe would be an inaccurate number for census numbers?
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A: unanswerable

Problem: The onset of infrared is defined (according to different standards) at various values typically between 700 nm and 800 nm, but the boundary between visible and infrared light is not precisely defined. The human eye is markedly less sensitive to light above 700 nm wavelength, so longer wavelengths make insignificant contributions to scenes illuminated by common light sources. However, particularly intense near-IR light (e.g., from IR lasers, IR LED sources, or from bright daylight with the visible light removed by colored gels) can be detected up to approximately 780 nm, and will be perceived as red light. Sources providing wavelengths as long as 1050 nm can be seen as a dull red glow in intense sources, causing some difficulty in near-IR illumination of scenes in the dark (usually this practical problem is solved by indirect illumination). Leaves are particularly bright in the near IR, and if all visible light leaks from around an IR-filter are blocked, and the eye is given a moment to adjust to the extremely dim image coming through a visually opaque IR-passing photographic filter, it is possible to see the Wood effect that consists of IR-glowing foliage.
What sort of light is generated by IR lasers?
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Answer: near-IR

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Persistent infections occur because the body is unable to clear the organism after the initial infection. Persistent infections are characterized by the continual presence of the infectious organism, often as latent infection with occasional recurrent relapses of active infection. There are some viruses that can maintain a persistent infection by infecting different cells of the body. Some viruses once acquired never leave the body. A typical example is the herpes virus, which tends to hide in nerves and become reactivated when specific circumstances arise.
How can some viruses cure a persistent infection?
A: unanswerable

Context and question: The Islamic Golden Age coincided with the Middle Ages in the Muslim world, starting with the rise of Islam and establishment of the first Islamic state in 622. The end of the age is variously given as 1258 with the Mongolian Sack of Baghdad, or 1492 with the completion of the Christian Reconquista of the Emirate of Granada in Al-Andalus, Iberian Peninsula. During the reign of the Abbasid caliph Harun ar-Rashid (786 to 809), the legendary House of Wisdom was inaugurated in Baghdad where scholars from various parts of the world sought to translate and gather all the known world's knowledge into Arabic. The Abbasids were influenced by the Quranic injunctions and hadiths, such as "the ink of a scholar is more holy than the blood of a martyr," that stressed the value of knowledge. The major Islamic capital cities of Baghdad, Cairo, and Cordoba became the main intellectual centers for science, philosophy, medicine, and education. During this period, the Muslim world was a collection of cultures; they drew together and advanced the knowledge gained from the ancient Greek, Roman, Persian, Chinese, Indian, Egyptian, and Phoenician civilizations.
What years did Abbasid caliph Harun ar-Rashid reign?
Answer: 786 to 809

Question: Reapportionment following the 2010 United States Census gave the state two more seats in the House of Representatives. The legislature's redistricting, announced in 2012, was quickly challenged in court, on the grounds that it had unfairly benefited Republican interests. In 2015, the Florida Supreme Court ruled on appeal that the congressional districts had to be redrawn because of the legislature's violation of the Fair District Amendments to the state constitution passed in 2010; it accepted a new map in early December 2015.
Is there an answer to this question: How did the Florida supreme court rule on the challenge

Answer: Florida Supreme Court ruled on appeal that the congressional districts had to be redrawn because of the legislature's violation of the Fair District Amendments

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In the mid-fifteenth century, the religion of Sikhism was born. During the Mughal empire, many Hindus increasingly adopted Sikhism. These became a formidable military force against the Mughals and later against the Afghan Empire. After fighting Ahmad Shah Durrani in the later eighteenth century, the Sikhs took control of Punjab and managed to establish the Sikh Empire under Maharaja Ranjit Singh, which lasted from 1799 to 1849. The capital of Ranjit Singh's empire was Lahore, and the empire also extended into Afghanistan and Kashmir. Bhangi Misl was the fist Sikh band to conquer Lahore and other towns of Punjab. Syed Ahmad Barelvi a Muslim, waged jihad and attempted to create an Islamic state with strict enforcement of Islamic law. Syed Ahmad Barelvi in 1821 with many supporters and spent two years organising popular and material support for his Punjab campaign. He carefully developed a network of people through the length and breadth of India to collect funds and encourage volunteers, travelling widely throughout India attracting a following among pious Muslims. In December 1826 Sayyid Ahmad and his followers clashed with Sikh troops at Akora Khattak, but with no decisive result. In a major battle near the town of Balakot in 1831, Sayyid Ahmad and Shah Ismail Shaheed with volunteer Muslims were defeated by the professional Sikh Army.
How long did the Afghan Empire last?
A:
unanswerable