Problem: Given the question: Extract the answer to the question from the following context. Question: What is Thomas Aquinas' last name? Context: Scholars continue to debate whether the U.S. Constitution adopted a particular interpretation of the "rule of law," and if so, which one. For example, John Harrison asserts that the word "law" in the Constitution is simply defined as that which is legally binding, rather than being "defined by formal or substantive criteria," and therefore judges do not have discretion to decide that laws fail to satisfy such unwritten and vague criteria. Law Professor Frederick Mark Gedicks disagrees, writing that Cicero, Augustine, Thomas Aquinas, and the framers of the U.S. Constitution believed that an unjust law was not really a law at all.
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The answer is:
Aquinas

Problem: Given the question: Extract the answer to the question from the following context. Question: what time period is mentioned first? Context: The traditional energy supply of Thuringia is lignite, mined in the bordering Leipzig region. Since 2000, the importance of environmentally unfriendly lignite combustion has declined in favour of renewable energies, which reached an amount of 40% (in 2013), and more clean gas combustion, often carried out as Cogeneration in the municipal power stations. The most important forms of renewable energies are Wind power and Biomass, followed by Solar energy and Hydroelectricity. Furthermore, Thuringia hosts two big pumped storage stations: the Goldisthal Pumped Storage Station and the Hohenwarte Dam.
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The answer is:
2000

Problem: Given the question: Extract the answer to the question from the following context. Question: Why might I question Tito's ethics? Context: Tito has also been named as responsible for systematic eradication of the ethnic German (Danube Swabian) population in Vojvodina by expulsions and mass executions following the collapse of the German occupation of Yugoslavia at the end of World War II, in contrast to his inclusive attitude towards other Yugoslav nationalities.
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The answer is:
systematic eradication of the ethnic German