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: Central Park is an urban park in Manhattan, New York City. It is located between the Upper West Side and Upper East Side, roughly bounded by Fifth Avenue on the east, Central Park West (Eighth Avenue) on the west, Central Park South (59th Street) on the south, and Central Park North (110th Street) on the north. Central Park is the most visited urban park in the United States, with 40 million visitors in 2013, and one of the most filmed locations in the world. In terms of area, Central Park is the fifth-largest park in New York City, covering 843 acres (341 ha).
 Question: is central park the biggest park in america Context: The lack of usage of a serial comma is often characterized as a journalistic style of writing, as contrasted with a more academic or formal style. Journalists typically do not use the serial comma, possibly for economy of space. Various journalistic style guides (such as those published by The New York Times, The Los Angeles Times, the Associated Press, The Times newspaper in the United Kingdom, and the Canadian Press) recommend against its use (see below).
 Question: does the new york times use the oxford comma Context: The first automotive direct injection system used to run on gasoline was developed by Bosch, and was introduced by Goliath for their Goliath GP700 automobile, and Gutbrod in 1952. This was basically a high-pressure diesel direct-injection pump with an intake throttle valve. (Diesels only change the amount of fuel injected to vary output; there is no throttle.) This system used a normal gasoline fuel pump, to provide fuel to a mechanically driven injection pump, which had separate plungers per injector to deliver a very high injection pressure directly into the combustion chamber. The 1954 Mercedes-Benz W196 Formula 1 racing car engine used Bosch direct injection derived from wartime aircraft engines. Following this racetrack success, the 1955 Mercedes-Benz 300SL, the first production sports car to use fuel injection, used direct injection. The 1955 Mercedes-Benz 300SLR, in which Stirling Moss drove to victory in the 1955 Mille Miglia and Pierre Levegh crashed and died in the 1955 Le Mans disaster, had an engine developed from the W196 engine. The Bosch fuel injectors were placed into the bores on the cylinder wall used by the spark plugs in other Mercedes-Benz six-cylinder engines (the spark plugs were relocated to the cylinder head). Later, more mainstream applications of fuel injection favored the less-expensive indirect injection methods.
 Question: are there spark plugs in a fuel injected engine Context: John Brown's raid on Harper's Ferry (also known as John Brown's raid or The raid on Harper's Ferry) was an effort by armed abolitionist John Brown to initiate an armed slave revolt in 1859 by taking over a United States arsenal at Harpers Ferry, Virginia. Brown's party of 22 was defeated by a company of U.S. Marines, led by First Lieutenant Israel Greene. Colonel Robert E. Lee was in overall command of the operation to retake the arsenal. John Brown had originally asked Harriet Tubman and Frederick Douglass, both of whom he had met in his transformative years as an abolitionist in Springfield, Massachusetts, to join him in his raid, but Tubman was prevented by illness and Douglass declined, as he believed Brown's plan would fail.
 Question: was the raid at harpers ferry a success explain
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