Input: Article: There are several major exceptions on tuition fees. In many European countries, it is possible to study without tuition fees. Public universities in Nordic countries were entirely without tuition fees until around 2005. Denmark, Sweden and Finland then moved to put in place tuition fees for foreign students. Citizens of EU and EEA member states and citizens from Switzerland remain exempted from tuition fees, and the amounts of public grants granted to promising foreign students were increased to offset some of the impact.

Now answer this question: What kind of students pay fees in public universities in Denmark?

Output: foreign students

Article: Since 1973 Plymouth has been supplied water by South West Water. Prior to the 1973 take over it was supplied by Plymouth County Borough Corporation. Before the 19th century two leats were built in order to provide drinking water for the town. They carried water from Dartmoor to Plymouth. A watercourse, known as Plymouth or Drake's Leat, was opened on 24 April 1591 to tap the River Meavy. The Devonport Leat was constructed to carry fresh drinking water to the expanding town of Devonport and its ever growing dockyard. It was fed by three Dartmoor rivers: The West Dart, Cowsic and Blackabrook. It seems to have been carrying water since 1797, but it was officially completed in 1801. It was originally designed to carry water to Devonport town, but has since been shortened and now carries water to Burrator Reservoir, which feeds most of the water supply of Plymouth. Burrator Reservoir is located about 5 miles (8 km) north of the city and was constructed in 1898 and expanded in 1928.

Question: When did construction finish on Devonport Leat?
Ans: 1801

Here is a question about this article: On 6 September 2007, Belgian-based International Polar Foundation unveiled the Princess Elisabeth station, the world's first zero-emissions polar science station in Antarctica to research climate change. Costing $16.3 million, the prefabricated station, which is part of the International Polar Year, was shipped to the South Pole from Belgium by the end of 2008 to monitor the health of the polar regions. Belgian polar explorer Alain Hubert stated: "This base will be the first of its kind to produce zero emissions, making it a unique model of how energy should be used in the Antarctic." Johan Berte is the leader of the station design team and manager of the project which conducts research in climatology, glaciology and microbiology.
What is the answer to this question: What type of research was Princess Elizabeth station built to study?
****
So... climate change

The problem: Answer a question about this article:
After Christianization, the Roman Catholic Church and local rulers led German expansion and settlement in areas inhabited by Slavs and Balts, known as Ostsiedlung. During the wars waged in the Baltic by the Catholic German Teutonic Knights; the lands inhabited by the ethnic group of the Old Prussians (the current reference to the people known then simply as the "Prussians"), were conquered by the Germans. The Old Prussians were an ethnic group related to the Latvian and Lithuanian Baltic peoples. The former German state of Prussia took its name from the Baltic Prussians, although it was led by Germans who had assimilated the Old Prussians; the old Prussian language was extinct by the 17th or early 18th century. The Slavic people of the Teutonic-controlled Baltic were assimilated into German culture and eventually there were many intermarriages of Slavic and German families, including amongst the Prussia's aristocracy known as the Junkers. Prussian military strategist Karl von Clausewitz is a famous German whose surname is of Slavic origin. Massive German settlement led to the assimilation of Baltic (Old Prussians) and Slavic (Wends) populations, who were exhausted by previous warfare.
What let to the assimilation of Baltic and Slavic populations?
****
The answer: Massive German settlement

Problem: Please answer a question about the following article about Southern Europe:
The most widely spoken family of languages in southern Europe are the Romance languages, the heirs of Latin, which have spread from the Italian peninsula, and are emblematic of Southwestern Europe. (See the Latin Arch.) By far the most common romance languages in Southern Europe are: Italian, which is spoken by over 50 million people in Italy, San Marino, and the Vatican; and Spanish, which is spoken by over 40 million people in Spain and Gibraltar. Other common romance languages include: Romanian, which is spoken in Romania and Moldova; Portuguese, which is spoken in Portugal; Catalan, which is spoken in eastern Spain; and Galician, which is spoken in northwestern Spain.
Where can people who speak Catalan be found?
A: eastern Spain

Question: Read this and answer the question

The earliest recorded history of the region dates back to about 500 BCE when much, if not all, of modern Tajikistan was part of the Achaemenid Empire. Some authors have also suggested that in the 7th and 6th century BCE parts of modern Tajikistan, including territories in the Zeravshan valley, formed part of Kambojas before it became part of the Achaemenid Empire. After the region's conquest by Alexander the Great it became part of the Greco-Bactrian Kingdom, a successor state of Alexander's empire. Northern Tajikistan (the cities of Khujand and Panjakent) was part of Sogdia, a collection of city-states which was overrun by Scythians and Yuezhi nomadic tribes around 150 BCE. The Silk Road passed through the region and following the expedition of Chinese explorer Zhang Qian during the reign of Wudi (14187 BCE) commercial relations between Han China and Sogdiana flourished. Sogdians played a major role in facilitating trade and also worked in other capacities, as farmers, carpetweavers, glassmakers, and woodcarvers.

What was modern Tajikistan part of around 500 BE?
Answer:
the Achaemenid Empire