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: Coming with change of recognition in 1971 of the Chinese seat, North Korea gained observer status. North Korea has never held a seat on the UN Security Council.
 Question: is north korea a member of united nation Context: This is a list of diplomatic missions in the United States. At present, 177 nations maintain diplomatic missions to the United States in the capital, Washington, D.C. Eight nations also attribute their missions at the United Nations in New York as their official embassies to the United States. However, only those offices in New York that serve as an official diplomatic mission to the United States are listed here. For a complete list of diplomatic missions to the United Nations, see List of current Permanent Representatives to the United Nations.
 Question: does the us have embassies for other countries Context: Orange is the colour between yellow and red on the spectrum of visible light. Human eyes perceive orange when observing light with a dominant wavelength between roughly 585 and 620 nanometres. In painting and traditional colour theory, it is a secondary colour of pigments, created by mixing red and yellow. It is named after the fruit of the same name.
 Question: did the colour orange come before the fruit Context: Although the soft, orange sweet potato is often called a ``yam'' in parts of North America, the sweet potato is botanically very distinct from a genuine yam (Dioscorea), which is native to Africa and Asia and belongs to the monocot family Dioscoreaceae. To add to the confusion, a different crop plant, the oca (Oxalis tuberosa, a species of wood sorrel), is called a ``yam'' in many parts of Polynesia, including New Zealand.
 Question: are sweet potatos and yams the same thing Context: The use of toxic chemicals as weapons dates back thousands of years, but the first large scale use of chemical weapons was during World War I. They were primarily used to demoralize, injure, and kill entrenched defenders, against whom the indiscriminate and generally very slow-moving or static nature of gas clouds would be most effective. The types of weapons employed ranged from disabling chemicals, such as tear gas, to lethal agents like phosgene, chlorine, and mustard gas. This chemical warfare was a major component of the first global war and first total war of the 20th century. The killing capacity of gas was limited, with about ninety thousand fatalities from a total of 1.3 million casualties caused by gas attacks. Gas was unlike most other weapons of the period because it was possible to develop countermeasures, such as gas masks. In the later stages of the war, as the use of gas increased, its overall effectiveness diminished. The widespread use of these agents of chemical warfare, and wartime advances in the composition of high explosives, gave rise to an occasionally expressed view of World War I as ``the chemist's war'' and also the era where weapons of mass destruction were created.
 Question: was there chemical warfare in world war 1
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