In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
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Question: What happened in the lower part of the country?, Context: Representatives of the Polish government officially took over the civilian administration of the southern part of East Prussia on 23 May 1945. Subsequently Polish expatriates from Polish lands annexed by the Soviet Union as well as Ukrainians and Lemkos from southern Poland, expelled in Operation Vistula in 1947, were settled in the southern part of East Prussia, now the Polish Warmian-Masurian Voivodeship. In 1950 the Olsztyn Voivodeship counted 689,000 inhabitants, 22.6% of them coming from areas annexed by the Soviet Union, 10% Ukrainians, and 18.5% of them pre-war inhabitants. The remaining pre-war population was treated as Germanized Poles and a policy of re-Polonization was pursued throughout the country Most of these "Autochthones" chose to emigrate to West Germany from the 1950s through 1970s (between 1970 and 1988 55,227 persons from Warmia and Masuria moved to Western Germany). Local toponyms were Polonised by the Polish Commission for the Determination of Place Names.

Answer: Subsequently Polish expatriates from Polish lands annexed by the Soviet Union as well as Ukrainians and Lemkos from southern Poland, expelled in Operation Vistula in 1947, were settled in the southern part of East Prussia


Question: Who is the Queen married to?, Context: Burke took a leading role in the debate regarding the constitutional limits to the executive authority of the king. He argued strongly against unrestrained royal power and for the role of political parties in maintaining a principled opposition capable of preventing abuses, either by the monarch, or by specific factions within the government. His most important publication in this regard was his Thoughts on the Cause of the Present Discontents of 23 April 1770. Burke identified the "discontents" as stemming from the "secret influence" of a neo-Tory group he labelled as, the "king's friends", whose system "comprehending the exterior and interior administrations, is commonly called, in the technical language of the Court, Double Cabinet". Britain needed a party with "an unshaken adherence to principle, and attachment to connexion, against every allurement of interest". Party divisions "whether operating for good or evil, are things inseparable from free government".

Answer: king


Question: What is a common entrance?, Context: A series of low-lying annexes (largely hidden) flank both ends. Also in the square are the glass-faced Planalto Palace housing the presidential offices, and the Palace of the Supreme Court. Farther east, on a triangle of land jutting into the lake, is the Palace of the Dawn (Palácio da Alvorada; the presidential residence). Between the federal and civic buildings on the Monumental Axis is the city's cathedral, considered by many to be Niemeyer's finest achievement (see photographs of the interior). The parabolically shaped structure is characterized by its 16 gracefully curving supports, which join in a circle 115 feet (35 meters) above the floor of the nave; stretched between the supports are translucent walls of tinted glass. The nave is entered via a subterranean passage rather than conventional doorways. Other notable buildings are Buriti Palace, Itamaraty Palace, the National Theater, and several foreign embassies that creatively embody features of their national architecture. The Brazilian landscape architect Roberto Burle Marx designed landmark modernist gardens for some of the principal buildings.

Answer:
doorways