Input: Read this: Providing 25% of Namibia's revenue, mining is the single most important contributor to the economy. Namibia is the fourth largest exporter of non-fuel minerals in Africa and the world's fourth largest producer of uranium. There has been significant investment in uranium mining and Namibia is set to become the largest exporter of uranium by 2015. Rich alluvial diamond deposits make Namibia a primary source for gem-quality diamonds. While Namibia is known predominantly for its gem diamond and uranium deposits, a number of other minerals are extracted industrially such as lead, tungsten, gold, tin, fluorspar, manganese, marble, copper and zinc. There are offshore gas deposits in the Atlantic Ocean that are planned to be extracted in the future. According to "The Diamond Investigation", a book about the global diamond market, from 1978, De Beers, the largest diamond company, bought most of the Namibian diamonds, and would continue to do so, because "whatever government eventually comes to power they will need this revenue to survive".
Question: In what year does Namibia plan to start drilling for oil and gas offshore?

Output: unanswerable

QUES: In 1578 king Stefan Batory created the Crown Tribunal in order to reduce the enormous pressure on the Royal Court. This placed much of the monarch's juridical power in the hands of the elected szlachta deputies, further strengthening the nobility class. In 1581 the Crown Tribunal was joined by a counterpart in Lithuania, the Lithuanian Tribunal.

Where was a lot of power placed in result of the crown tribunal?
What is the answer?
ANS: the nobility class

QUES: Article 10 of the Berne Convention mandates that national laws provide for limitations to copyright, so that copyright protection does not extend to certain kinds of uses that fall under what the treaty calls "fair practice," including but not limited to minimal quotations used in journalism and education. The laws implementing these limitations and exceptions for uses that would otherwise be infringing broadly fall into the categories of either fair use or fair dealing. In common law systems, these fair practice statutes typically enshrine principles underlying many earlier judicial precedents, and are considered essential to freedom of speech.
What do these statutes represent?

ANS: principles underlying many earlier judicial precedents

Portugal operates a multi-party system of competitive legislatures/local administrative governments at the national-, regional- and local-levels. The Assembly of the Republic, Regional Assemblies and local municipalities and parishes, are dominated by two political parties, the Socialist Party and the Social Democratic Party, in addition to the Unitary Democratic Coalition (Portuguese Communist Party and Ecologist Party "The Greens"), the Left Bloc and the Democratic and Social Centre People's Party, which garner between 5 and 15% of the vote regularly.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): At what three levels does the Portugal government operate?
Ah, so.. national-, regional- and local-levels

Question: Lighting or illumination is the deliberate use of light to achieve a practical or aesthetic effect. Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight. Daylighting (using windows, skylights, or light shelves) is sometimes used as the main source of light during daytime in buildings. This can save energy in place of using artificial lighting, which represents a major component of energy consumption in buildings. Proper lighting can enhance task performance, improve the appearance of an area, or have positive psychological effects on occupants.
Try to answer this question if possible: What is used a main source of light for a building during the day?
Answer: Daylighting

Context and question: The roots of Greek success in the Ottoman Empire can be traced to the Greek tradition of education and commerce. It was the wealth of the extensive merchant class that provided the material basis for the intellectual revival that was the prominent feature of Greek life in the half century and more leading to the outbreak of the Greek War of Independence in 1821. Not coincidentally, on the eve of 1821, the three most important centres of Greek learning were situated in Chios, Smyrna and Aivali, all three major centres of Greek commerce. Greek success was also favoured by Greek domination of the Christian Orthodox church.
Who held much of the wealth in the Greek society ?
Answer:
the wealth of the extensive merchant class