Input: Canadian Armed Forces
The Canadian Rangers, who provide surveillance and patrol services in Canada's arctic and other remote areas, are an essential reserve force component used for Canada's exercise of sovereignty over its northern territory.

What do Canadian Rangers perform?
Output: provide surveillance and patrol services

Input: Uranium
Two major types of atomic bombs were developed by the United States during World War II: a uranium-based device (codenamed "Little Boy") whose fissile material was highly enriched uranium, and a plutonium-based device (see Trinity test and "Fat Man") whose plutonium was derived from uranium-238. The uranium-based Little Boy device became the first nuclear weapon used in war when it was detonated over the Japanese city of Hiroshima on 6 August 1945. Exploding with a yield equivalent to 12,500 tonnes of TNT, the blast and thermal wave of the bomb destroyed nearly 50,000 buildings and killed approximately 75,000 people (see Atomic bombings of Hiroshima and Nagasaki). Initially it was believed that uranium was relatively rare, and that nuclear proliferation could be avoided by simply buying up all known uranium stocks, but within a decade large deposits of it were discovered in many places around the world.

What was the equivalent yield in TNT of the Little Boy bomb, in tonnes?
Output: 12,500

Input: Jehovah%27s Witnesses
Each congregation has a body of appointed unpaid male elders and ministerial servants. Elders maintain general responsibility for congregational governance, setting meeting times, selecting speakers and conducting meetings, directing the public preaching work, and creating "judicial committees" to investigate and decide disciplinary action for cases involving sexual misconduct or doctrinal breaches. New elders are appointed by a traveling overseer after recommendation by the existing body of elders. Ministerial servantsappointed in a similar manner to eldersfulfill clerical and attendant duties, but may also teach and conduct meetings. Witnesses do not use elder as a title to signify a formal clergy-laity division, though elders may employ ecclesiastical privilege such as confession of sins.

What does each congregation have?
Output: a body of appointed unpaid male elders

Input: British Empire
The loss of such a large portion of British America, at the time Britain's most populous overseas possession, is seen by some historians as the event defining the transition between the "first" and "second" empires, in which Britain shifted its attention away from the Americas to Asia, the Pacific and later Africa. Adam Smith's Wealth of Nations, published in 1776, had argued that colonies were redundant, and that free trade should replace the old mercantilist policies that had characterised the first period of colonial expansion, dating back to the protectionism of Spain and Portugal. The growth of trade between the newly independent United States and Britain after 1783 seemed to confirm Smith's view that political control was not necessary for economic success.

The growth of trade between the US and Britain after 1783 seemed to confirm whose views?
Output:
Smith