[Q]: Extract the answer to the question from the following context. Question: Who didn't believe in the implosion concept? Context: Von Neumann's principal contribution to the atomic bomb was in the concept and design of the explosive lenses needed to compress the plutonium core of the Fat Man weapon that was later dropped on Nagasaki. While von Neumann did not originate the "implosion" concept, he was one of its most persistent proponents, encouraging its continued development against the instincts of many of his colleagues, who felt such a design to be unworkable. He also eventually came up with the idea of using more powerful shaped charges and less fissionable material to greatly increase the speed of "assembly".
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[A]: many of his colleagues

[Q]: Extract the answer to the question from the following context. Question: What type of schools do they have in a theocratic nation? Context: The New York City Charter School Center assists the setup of new charter schools. There are approximately 900 additional privately run secular and religious schools in the city.
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[A]: religious

[Q]: Extract the answer to the question from the following context. Question: citation was said to be? Context: Broadly speaking, government phonology (or its descendant, strict-CV phonology) has a greater following in the United Kingdom, whereas optimality theory is predominant in the United States.[citation needed]
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[A]: needed

[Q]: Extract the answer to the question from the following context. Question: What caused it to be warmer then than it is now? Context: During the Eocene (56 million years ago - 33.9 million years ago), the continents continued to drift toward their present positions. At the beginning of the period, Australia and Antarctica remained connected, and warm equatorial currents mixed with colder Antarctic waters, distributing the heat around the world and keeping global temperatures high. But when Australia split from the southern continent around 45 Ma, the warm equatorial currents were deflected away from Antarctica, and an isolated cold water channel developed between the two continents. The Antarctic region cooled down, and the ocean surrounding Antarctica began to freeze, sending cold water and ice floes north, reinforcing the cooling. The present pattern of ice ages began about 40 million years ago.[citation needed]
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[A]:
warm equatorial currents mixed with colder Antarctic waters, distributing the heat around the world