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: An oxbow lake is a U shaped body of water that forms when a wide meander from the main stem of a river is cut off, creating a free-standing body of water. This landform is so named for its distinctive curved shape, resembling the bow pin of an oxbow. In Australia, an oxbow lake is known as a billabong, from the indigenous language Wiradjuri. In south Texas, oxbows left by the Rio Grande are called resacas.
 Question: a cutoff meander can become an oxbow lake Context: War (US) or Battle (UK) is a card game typically played by two players. It uses a standard playing card deck in decreasing order is: AKQJ 10 9 8 7 6 5 4 3 2. Due to its simplicity, it is played most often by children. There are many variations, including those played in other countries such as Tod und Leben (Life and Death), a 32-card version played in the German-speaking world.
 Question: is the ace the highest card in war Context: In early 2011, Smile Train and Operation Smile announced the two charities would merge, followed three weeks later by announcements the merger had been aborted, Smile Train having canceled the union. Smile Train's board also named Priscilla Ma the executive director of the organization, while other board members and directors stepped down.
 Question: is operation smile the same as smile train
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