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: Notes issued are either backed by Bank of England notes at a rate of one pound to one pound sterling, or can be backed by securities issued by the Government of Gibraltar. Although Gibraltar notes are denominated in ``pounds sterling'', they are not legal tender anywhere in the United Kingdom. Gibraltar's coins are the same weight, size and metal as British coins, although the designs are different, and they are occasionally found in circulation across Britain.
 Question: can i use gibraltar pounds in the uk Context: Though usually considered joke prizes, traders legally win the Zonks. However, after the taping of the show, any trader who had been Zonked is offered a consolation prize (currently $100) instead of having to take home the actual Zonk. This is partly because some of the Zonks are impractical or physically impossible to receive or deliver to the traders (such as live animals or the guy in an animal costume), or the props are owned by the studio. A disclaimer at the end of the credits of later 1970s episodes read ``Some traders accept reasonable duplicates of Zonk prizes.'' Starting in the 2012--13 season, CBS invited viewers to provide Zonk ideas to producers. At the end of the season, the Zonk declared the most creative was worth $2,500 to the winner, and other viewers' Zonk ideas were also used. For every viewer-developed Zonk, the host announced the viewer who provided the Zonk. The contest has been continued throughout the past several seasons after its 2012 introduction.
 Question: do you get to keep the zonk prizes on let's make a deal 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: do cows need to have babies to produce milk Context: The name of this metabolic pathway is derived from the citric acid (a type of tricarboxylic acid, often called citrate, as the ionized form predominates at biological pH) that is consumed and then regenerated by this sequence of reactions to complete the cycle. The cycle consumes acetate (in the form of acetyl-CoA) and water, reduces NAD to NADH, and produces carbon dioxide as a waste byproduct. The NADH generated by the citric acid cycle is fed into the oxidative phosphorylation (electron transport) pathway. The net result of these two closely linked pathways is the oxidation of nutrients to produce usable chemical energy in the form of ATP.
 Question: is citric acid a product of the citric acid cycle
Yes
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Yes
Yes
No