Context: Death from laughter is a rare form of death, usually resulting from cardiac arrest or asphyxiation, caused by a fit of laughter. Instances of death by laughter have been recorded from the times of ancient Greece to the modern day.
 Question: can you have a heart attack from laughing Context: Though generally described as several separate oceans, the world's oceanic waters constitute one global, interconnected body of salt water sometimes referred to as the World Ocean or global ocean. This concept of a continuous body of water with relatively free interchange among its parts is of fundamental importance to oceanography.
 Question: is there a line between the pacific and atlantic ocean Context: On December 18, 2014, Parliament passed a bill to allow Danish citizens to become foreign nationals without losing their Danish citizenship, and to allow foreign nationals to acquire Danish citizenship without renouncing their prior citizenship. A provision in the bill also allows former Danish nationals who lost their citizenship as a result of accepting another to reobtain Danish citizenship. This provision expires in 2020. A separate provision, lasting until 2017, allows current applicants for Danish citizenship who have been approved under the condition they renounce their prior citizenship to retain their prior nationality as they become Danish citizens. The law came into force on September 1, 2015.
 Question: can a us citizen become a citizen of denmark Context: Washington, D.C., formally the District of Columbia and commonly referred to as ``Washington'', ``the District'', or simply ``D.C.'', is the capital of the United States.
 Question: is district of columbia the same as washington dc Context: The film was adapted by Wesley Strick from the original screenplay by James R. Webb, which was an adaptation from the novel The Executioners by John D. MacDonald.
 Question: was cape fear based on a true story Context: Cooperative banking, as discussed here, includes retail banking carried out by credit unions, mutual savings banks, building societies and cooperatives, as well as commercial banking services provided by mutual organizations (such as cooperative federations) to cooperative businesses.
 Question: in cooprative banking the borrowers or members are banks Context: The .50 Caliber BMG Regulation Act of 2004 is a law in the state of California that effectively banned all .50 BMG-caliber rifles from being sold in the state. The law took effect on January 1, 2005.
 Question: can you buy a 50 cal in california Context: Although Concorde and the Tu-144 were the first aircraft to carry commercial passengers at supersonic speeds, they were not the first or only commercial airliners to break the sound barrier. On 21 August 1961, a Douglas DC-8 broke the sound barrier at Mach 1.012 or 1,240 km/h (776.2 mph) while in a controlled dive through 41,088 feet (12,510 m). The purpose of the flight was to collect data on a new leading-edge design for the wing. A China Airlines 747 may have broken the sound barrier in an unplanned descent from 41,000 ft (12,500 m) to 9,500 ft (2,900 m) after an in-flight upset on 19 February 1985. It also reached over 5g.
 Question: can a commercial jet break the sound barrier
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