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: 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: Sun Dogs is a 2017 comedy drama film written by Anthony Tambakis and starring Michael Angarano, Melissa Benoist, Xzibit, Allison Janney, and Ed O'Neill. The film marks the feature film directorial debut of Jennifer Morrison. The film premiered at the LA Film Festival in June 2017 and was released in Netflix at April 6, 2018.
 Question: is sun dogs based on a true story Context: The National Day of Prayer (36 U.S.C. § 119) is an annual day of observance held on the first Thursday of May, designated by the United States Congress, when people are asked ``to turn to God in prayer and meditation''. Each year since its inception, the president has signed a proclamation, encouraging all Americans to pray on this day.
 Question: is there a national day of prayer in the us Context: Camellia sinensis can be grown in warmer parts of the United States and currently the US mainland has a relatively large plantation with full mechanization in Charleston, South Carolina, and numerous small number of commercial tea gardens and smaller artisan operations that currently pick tea by hand. Many smaller sites are looking to mechanize, at least partially, within the next 5 years. Some growers feel that tea production is not viable without some mechanization, but there is evidence that unmechanized tea production is viable, albeit with lower net profit margins. Most domestically grown teas are available through mail order and online purchases. The Charleston Tea Plantation's American Classic Tea brand is carried in Walmart under the American Choice label.
 Question: can you grow tea leaves in the us Context: Mercury was a common, long-standing treatment for syphilis, and its use as such has been suggested to date back to The Canon of Medicine (1025) by the Persian physician Ibn Sina (Avicenna); although this is only possible if syphilis existed in the Old World prior to Columbus (see § Origin). One of the first supporters of mercury treatment was Paracelsus because it had positive effects on the Arabic treatment of leprosy, which was thought to be a disease related to syphilis. Giorgio Sommariva of Verona is recorded to have used mercury to treat syphilis in 1496, and is often recognized as the first physician to have done so, although he may not have been a physician. During the sixteenth century, mercury was administered to syphilitic patients in various ways, including by rubbing it on the skin, by applying a plaster, and by mouth. A ``Fumigation'' method of administering mercury was also used, in which mercury was vaporized over a fire and the patients were exposed to the resulting steam, either by being placed in a bottomless seat over the hot coals, or by having their entire bodies except for the head enclosed in a box (called a ``tabernacle'') that received the steam. The goal of mercury treatment was to cause the patient to salivate, which was thought to expel the disease. Unpleasant side effects of mercury treatment included gum ulcers and loose teeth. Mercury continued to be used in syphilis treatment for centuries; an 1869 article by TJ Walker discussed administering mercury by injection for this purpose.
 Question: was mercury used as a cure for syphilis
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