Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
On September 15, 2007, Witon Barry (of the Tobolar Copra processing plant in the Marshall Islands capital of Majuro) said power authorities, private companies, and entrepreneurs had been experimenting with coconut oil as alternative to diesel fuel for vehicles, power generators, and ships. Coconut trees abound in the Pacific's tropical islands. Copra, the meat of the coconut, yields coconut oil (1 liter for every 6 to 10 coconuts). In 2009, a 57 kW solar power plant was installed, the largest in the Pacific at the time, including New Zealand. It is estimated that 330 kW of solar and 450 kW of wind power would be required to make the College of the Marshall Islands energy self-sufficient. Marshalls Energy Company (MEC), a government entity, provides the islands with electricity. In 2008, 420 solar home systems of 200 Wp each were installed on Ailinglaplap Atoll, sufficient for limited electricity use.
How many kilowatts of power are produced by the solar plant built in 2009?
A: 57

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Prior to the Golden Age of Mandolins, France had a history with the mandolin, with mandolinists playing in Paris until the Napoleonic Wars. The players, teachers and composers included Giovanni Fouchetti, Eduardo Mezzacapo, Gabriele Leon, and Gervasio. During the Golden age itself (1880s-1920s), the mandolin had a strong presence in France. Prominent mandolin players or composers included Jules Cottin and his sister Madeleine Cottin, Jean Pietrapertosa, and Edgar Bara. Paris had dozens of "estudiantina" mandolin orchestras in the early 1900s. Mandolin magazines included L'Estudiantina, Le Plectre, Ecole de la mandolie.
Who were the players and composers during this time?
A: Giovanni Fouchetti, Eduardo Mezzacapo, Gabriele Leon, and Gervasio

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Retail distribution of Windows 8 has since been discontinued in favor of Windows 8.1. Unlike 8, 8.1 is available as "full version software" at both retail and online for download that does not require a previous version of Windows in order to be installed. Pricing for these new copies remain identical. With the retail release returning to full version software for Windows 8.1, the "Personal Use License" exemption was removed from the OEM SKU, meaning that end users building their own PCs for personal use must use the full retail version in order to satisfy the Windows 8.1 licensing requirements. Windows 8.1 with Bing is a special OEM-specific SKU of Windows 8.1 subsidized by Microsoft's Bing search engine.
What is the primary difference in Windows 8.1?
A: 8.1 is available as "full version software"

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Outstanding debts were also agreed and the company permitted to export 250 tons of saltpetre. Again in 1673, Banks successfully negotiated another contract for 700 tons of saltpetre at 37,000 between the king and the company. So urgent was the need to supply the armed forces in the United Kingdom, America and elsewhere that the authorities sometimes turned a blind eye on the untaxed sales. One governor of the company was even reported as saying in 1864 that he would rather have the saltpetre made than the tax on salt.
What people were forbidden from using saltpetre?
A:
unanswerable