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Shortly after the end of the war in May 1945, Germans who had fled in early 1945 tried to return to their homes in East Prussia. An estimated number of 800,000 Germans were living in East Prussia during the summer of 1945. Many more were prevented from returning,[citation needed] and the German population of East Prussia was almost completely expelled by the communist regimes. During the war and for some time thereafter 45 camps were established for about 200,000-250,000 forced labourers, the vast majority of whom were deported to the Soviet Union, including the Gulag camp system. The largest camp with about 48,000 inmates was established at Deutsch Eylau (Iawa). Orphaned children who were left behind in the zone occupied by the Soviet Union were referred to as Wolf children.
How many Germans were prevented from returning to East Prussia?
A: unanswerable

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Fused quartz is a glass made from chemically-pure SiO2 (silica). It has excellent thermal shock characteristics, being able to survive immersion in water while red hot. However, its high melting-temperature (1723 C) and viscosity make it difficult to work with. Normally, other substances are added to simplify processing. One is sodium carbonate (Na2CO3, "soda"), which lowers the glass transition temperature. The soda makes the glass water-soluble, which is usually undesirable, so lime (calcium oxide [CaO], generally obtained from limestone), some magnesium oxide (MgO) and aluminium oxide (Al2O3) are added to provide for a better chemical durability. The resulting glass contains about 70 to 74% silica by weight and is called a soda-lime glass. Soda-lime glasses account for about 90% of manufactured glass.
What besides viscosity is a drawback of soda-lime glasses?
A: unanswerable

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Nasser's nomination for the post and the new constitution were put to public referendum on 23 June and each was approved by an overwhelming majority. A 350-member National Assembly was established, elections for which were held in July 1957. Nasser had ultimate approval over all the candidates. The constitution granted women's suffrage, prohibited gender-based discrimination, and entailed special protection for women in the workplace. Coinciding with the new constitution and Nasser's presidency, the RCC dissolved itself and its members resigned their military commissions as part of the transition to civilian rule. During the deliberations surrounding the establishment of a new government, Nasser began a process of sidelining his rivals among the original Free Officers, while elevating his closest allies to high-ranking positions in the cabinet.
Among the original Free Officers, what did Nasser do to his opponents?
A: sidelining

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The community of Casas Adobes is also on the Northwest Side, with the distinction of being Tucson's first suburb, established in the late 1940s. Casas Adobes is centered on the historic Casas Adobes Plaza (built in 1948). Casas Adobes is also home to Tohono Chul Park (a nature preserve) near the intersection of North Oracle Road and West Ina Road. The attempted assassination of Representative Gabrielle Giffords, and the murders of chief judge for the U.S. District Court for Arizona, John Roll and five other people on January 8, 2011, occurred at the La Toscana Village in Casas Adobes. The Foothills Mall is also located on the northwest side in Casas Adobes.
Where is Tohono Chul Park?
A:
near the intersection of North Oracle Road and West Ina Road