Input: Read this: One senator represents the island in the French Senate. The first election was held on 21 September 2008 with the last election in September 2014. St. Barthélemy became an overseas territory of the European Union on 1 January 2012, but the island's inhabitants remain French citizens with EU status holding EU passports. France is responsible for the defence of the island and as such has stationed a security force on the island comprising six policemen and thirteen gendarmes (posted on two-year term).
Question: In what year did St. Barthelemy residents become French citizens?

Output: unanswerable


QUES: In additive color devices such as computer displays and televisions, one of the primary light sources is typically a narrow-spectrum yellowish-green of dominant wavelength ~550 nm; this "green" primary is combined with an orangish-red "red" primary and a purplish-blue "blue" primary to produce any color in between – the RGB color model. A unique green (green appearing neither yellowish nor bluish) is produced on such a device by mixing light from the green primary with some light from the blue primary.

What is the wavelength of red?
What is the answer?
ANS: unanswerable


QUES: The Necessary exists 'due-to-Its-Self', and has no quiddity/essence (mahiyya) other than existence (wujud). Furthermore, It is 'One' (wahid ahad) since there cannot be more than one 'Necessary-Existent-due-to-Itself' without differentia (fasl) to distinguish them from each other. Yet, to require differentia entails that they exist 'due-to-themselves' as well as 'due to what is other than themselves'; and this is contradictory. However, if no differentia distinguishes them from each other, then there is no sense in which these 'Existents' are not one and the same. Avicenna adds that the 'Necessary-Existent-due-to-Itself' has no genus (jins), nor a definition (hadd), nor a counterpart (nadd), nor an opposite (did), and is detached (bari) from matter (madda), quality (kayf), quantity (kam), place (ayn), situation (wad), and time (waqt).
What does the necessary have?

ANS: unanswerable


Due to the work nature of airline pilots, who often cross several timezones and regions of sunlight and darkness in one day, and spend many hours awake both day and night, they are often unable to maintain sleep patterns that correspond to the natural human circadian rhythm; this situation can easily lead to fatigue. The NTSB cites this as contributing to many accidents[unreliable medical source?]  and has conducted several research studies in order to find methods of combating fatigue in pilots.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What has the NTSB conducted to find the cause of pilot fatigue?
Ah, so.. research studies


Question: Suleiman the Magnificent (1520–1566) captured Belgrade in 1521, conquered the southern and central parts of the Kingdom of Hungary as part of the Ottoman–Hungarian Wars,[not in citation given] and, after his historical victory in the Battle of Mohács in 1526, he established Turkish rule in the territory of present-day Hungary (except the western part) and other Central European territories. He then laid siege to Vienna in 1529, but failed to take the city. In 1532, he made another attack on Vienna, but was repulsed in the Siege of Güns. Transylvania, Wallachia and, intermittently, Moldavia, became tributary principalities of the Ottoman Empire. In the east, the Ottoman Turks took Baghdad from the Persians in 1535, gaining control of Mesopotamia and naval access to the Persian Gulf. In 1555, the Caucasus became officially partitioned for the first time between the Safavids and the Ottomans, a status quo that would remain until the end of the Russo-Turkish War (1768–74). By this partitioning of the Caucasus as signed in the Peace of Amasya, Western Armenia, and Western Georgia fell into Ottoman hands, while Dagestan, Eastern Armenia, Eastern Georgia, and Azerbaijan remained Persian.
Try to answer this question if possible: After a victorious battle in 1526 in what present-day nation was Turkish rule expanded to?
Answer: Hungary


Problem: Switzerland's ecosystems can be particularly fragile, because the many delicate valleys separated by high mountains often form unique ecologies. The mountainous regions themselves are also vulnerable, with a rich range of plants not found at other altitudes, and experience some pressure from visitors and grazing. The climatic, geological and topographical conditions of the alpine region make for a very fragile ecosystem that is particularly sensitive to climate change. Nevertheless, according to the 2014 Environmental Performance Index, Switzerland ranks first among 132 nations in safeguarding the environment, due to its high scores on environmental public health, its heavy reliance on renewable sources of energy (hydropower and geothermal energy), and its control of greenhouse gas emissions.
What rank was Switzerland in safeguarding the environment according to the 2014 Environmental Performance Index?
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Answer:
first among 132 nations