Input: Read this: As economic and demographic methods were applied to the study of history, the trend was increasingly to see the late Middle Ages as a period of recession and crisis. Belgian historian Henri Pirenne continued the subdivision of Early, High, and Late Middle Ages in the years around World War I. Yet it was his Dutch colleague, Johan Huizinga, who was primarily responsible for popularising the pessimistic view of the Late Middle Ages, with his book The Autumn of the Middle Ages (1919). To Huizinga, whose research focused on France and the Low Countries rather than Italy, despair and decline were the main themes, not rebirth.
Question: What was the nationality of historian Henri Pirenne?

Output: Belgian

QUES: Among all 17 railway stations in Nanjing, passenger rail service is mainly provided by Nanjing Railway Station and Nanjing South Railway Station, while other stations like Nanjing West Railway Station, Zhonghuamen Railway Station and Xianlin Railway Station serve minor roles. Nanjing Railway Station was first built in 1968. In 1999, On November 12, 1999, the station was burnt in a serious fire. Reconstruction of the station was finished on September 1, 2005. Nanjing South Railway Station, which is one of the 5 hub stations on BeijingShanghai High-Speed Railway, has officially been claimed as the largest railway station in Asia and the second largest in the world in terms of GFA (Gross Floor Area). Construction of Nanjing South Station began on 10 January 2008. The station was opened for public service in 2011.

In what year was the Nanjing Railway Station re-built?
What is the answer?
ANS: 2005

QUES: The Baylor College of Medicine has annually been considered within the top ten medical schools in the nation; likewise, the MD Anderson Cancer Center has consistently ranked as one of the top two U.S. hospitals specializing in cancer care by U.S. News & World Report since 1990. The Menninger Clinic, a renowned psychiatric treatment center, is affiliated with Baylor College of Medicine and The Methodist Hospital System. With hospital locations nationwide and headquarters in Houston, the Triumph Healthcare hospital system is the third largest long term acute care provider nationally.
How does MD Anderson Cancer Center rank in UK hospitals dealing with cancer care?

ANS: unanswerable

Marine mammals are many, such as the dolphins, porpoises and whales, which are seen here during the migration period from December till May. Turtles are a common sight along the coastline of the island. They are a protected species and in the endangered list. It is stated that it will take 1550 years for this species to attain reproductive age. Though they live in the sea, the females come to the shore to lay eggs and are protected by private societies. Three species of turtles are particularly notable. These are: The leatherback sea turtles which have leather skin instead of a shell and are the largest of the type found here, some times measuring a much as 3 m (average is about 1.5 m) and weighing about 450 kg (jellyfish is their favourite diet); the hawksbill turtles, which have hawk-like beaks and found near reefs, generally about 90 cm in diameter and weigh about 60 kg and their diet consists of crabs and snails; and the green turtles, herbivores which have rounded heads, generally about 90 cm in diameter and live amidst tall sea grasses.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is the favorite prey of leatherback sea turtles?
Ah, so.. jellyfish

Question: The personal copying exemption in the copyright law of EU member states stems from the EU Copyright Directive of 2001, which is generally devised to allow EU members to enact laws sanctioning making copies without authorization, as long as they are for personal, noncommerical use. The Copyright Directive was not intended to legitimize file-sharing, but rather the common practice of space shifting copyright-protected content from a legally purchased CD (for example) to certain kinds of devices and media, provided rights holders are compensated and no copy protection measures are circumvented. Rights-holder compensation takes various forms, depending on the country, but is generally either a levy on "recording" devices and media, or a tax on the content itself. In some countries, such as Canada, the applicability of such laws to copying onto general-purpose storage devices like computer hard drives, portable media players, and phones, for which no levies are collected, has been the subject of debate and further efforts to reform copyright law.
Try to answer this question if possible: What is an example of a country that has all levies collected?
Answer: unanswerable

Input: Read this: There are many non-incandescent light sources, such as the fluorescent lamp, high-intensity discharge lamps and LED lamps, which have higher luminous efficiency, and some have been designed to be retrofitted in fixtures for incandescent lights. These devices produce light by luminescence. These lamps produce discrete spectral lines and do not have the broad "tail" of invisible infrared emissions. By careful selection of which electron energy level transitions are used, and fluorescent coatings which modify the spectral distribution, the spectrum emitted can be tuned to mimic the appearance of incandescent sources, or other different color temperatures of white light. Due to the discrete spectral lines rather than a continuous spectrum, the light is not ideal for applications such as photography and cinematography.
Question: How can luminescent light sources be modified to resemble the appearance of incandescents?

Output:
By careful selection of which electron energy level transitions are used, and fluorescent coatings which modify the spectral distribution