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: The delivery of a no-ball results in one run -- two under some regulations -- to be added to the batting team's score, and an additional ball must be bowled. In addition, the number of ways in which the batsman can be given out is reduced to three. In shorter competition cricket, a batsman receives a 'free hit' on the ball after any kind of no-ball (see below). This means the batsman can freely hit one ball with no danger of being out in most ways.
 Question: can you be out on a no ball Context: The seventh season of the American ABC fantasy-drama Once Upon a Time was ordered on May 11, 2017. It will consist of 22 episodes, airing on Fridays, having premiered on October 6, 2017.
 Question: are they making a seventh season of once upon a time Context: The strongest jet streams are the polar jets, at 9--12 km (30,000--39,000 ft) above sea level, and the higher altitude and somewhat weaker subtropical jets at 10--16 km (33,000--52,000 ft). The Northern Hemisphere and the Southern Hemisphere each have a polar jet and a subtropical jet. The northern hemisphere polar jet flows over the middle to northern latitudes of North America, Europe, and Asia and their intervening oceans, while the southern hemisphere polar jet mostly circles Antarctica all year round.
 Question: is there a jet stream in the southern hemisphere Context: There are reports of stingers breaking off in wounds, but this may be rare. This would not be fatal to the stingray as it will be regrown at a rate of about 1.25 to 2 centimetres (0.49 to 0.79 in) per month (though with significant variations depending on the size of the stingray and the exact species). Contact with the stinger causes local trauma (from the cut itself), pain, swelling, and muscle cramps from the venom, and possible later infection from bacteria or fungi. Immediate injuries to humans include, but are not limited to: poisoning, punctures, severed arteries and veins, and occasionally death. Fatal stings are very rare, but can happen, infamously including Steve Irwin. In Irwin's case, the stinger penetrated his thoracic wall, causing massive trauma.
 Question: does the barb on a stingray grow back
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