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: To maintain lactation, a dairy cow must be bred and produce calves. Depending on market conditions, the cow may be bred with a ``dairy bull'' or a ``beef bull.'' Female calves (heifers) with dairy breeding may be kept as replacement cows for the dairy herd. If a replacement cow turns out to be a substandard producer of milk, she then goes to market and can be slaughtered for beef. Male calves can either be used later as a breeding bull or sold and used for veal or beef. Dairy farmers usually begin breeding or artificially inseminating heifers around 13 months of age. A cow's gestation period is approximately nine months. Newborn calves are removed from their mothers quickly, usually within three days, as the mother/calf bond intensifies over time and delayed separation can cause extreme stress on both cow and calf.
 Question: can a cow produce milk without ever being pregnant Context: Mexican Train is a game played with dominoes. The object of the game is for a player to play all the dominoes from his or her hand onto one or more chains, or ``trains'', emanating from a central hub or ``station''. The game's most popular name comes from a special optional train that belongs to all players. However, the game can be played without the Mexican Train; such variants are generally called ``Private Trains'' or ``Domino Trains''. It is related to the game Chicken Foot.
 Question: can you play mexican train with regular dominoes Context: Belgium's best finish in the World Cup is third, at the Russia 2018 tournament. Belgium previously finished fourth in the Mexico 1986 competition.
 Question: has belgium ever won the world cup final Context: The Mpemba effect is a process in which hot water can freeze faster than cold water. The phenomenon is temperature-dependent. There is disagreement about the parameters required to produce the effect and about its theoretical basis.
 Question: will warm water freeze quicker than cold water Context: Six Flags AstroWorld was a seasonally operated theme park located on approximately 57 acres (23 ha) of land (later expanded to over 75 acres (30 ha)) between Kirby Drive and Fannin Avenue, directly south of Loop 610 in Houston, Texas. Opening on June 1, 1968, it was originally developed and constructed as part of the Astrodomain, the brainchild of local philanthropist and former Houston mayor Judge Roy Hofheinz, who intended it to complement The Astrodome.
 Question: is there a six flags in houston tx
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