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: So far, two nuclear weapons have been used in the course of warfare, both by the United States near the end of World War II. On August 6, 1945, a uranium gun-type device (code name ``Little Boy'') was detonated over the Japanese city of Hiroshima. Three days later, on August 9, a plutonium implosion-type device (code name ``Fat Man'') was detonated over the Japanese city of Nagasaki. These two bombings resulted in the deaths of approximately 120,000 people.
 Question: has there ever been a nuclear bomb set off Context: Taco Bell has attempted to enter the Mexican market twice. After a highly publicised launch in Mexico City in 1992, all the restaurants were closed two years later. In September 2007, Taco Bell returned to Monterrey, projecting an American image with an Americanized menu that included french fries, but it closed in January 2010 due to low patronage.
 Question: is there a taco bell in mexico city Context: In the latter case, a statement is distinct from a sentence in that a sentence is only one formulation of a statement, whereas there may be many other formulations expressing the same statement.
 Question: is a statement the same as a sentence Context: Camelids are members of the biological family Camelidae, the only currently living family in the suborder Tylopoda. The extant members of this group are: dromedary camels, Bactrian camels, wild Bactrian camels, llamas, alpacas, vicuñas, and guanacos.
 Question: are llamas and alpacas in the same family Context: The name mineral oil by itself is imprecise, having been used for many specific oils over the past few centuries. Other names, similarly imprecise, include white oil, paraffin oil, liquid paraffin (a highly refined medical grade), paraffinum liquidum (Latin), and liquid petroleum. Baby oil is a perfumed mineral oil.
 Question: is paraffin oil and mineral oil the same thing
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