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 series was created by Tony McHale and Mal Young as a spin-off from the established BBC medical drama Casualty, and premiered on 12 January 1999. It is set in the same hospital as Casualty, in the fictional city of Holby, and featured occasional crossovers of characters and plots with both Casualty (which featured dedicated episodes broadcast as Casualty@Holby City) and the show's 2007 police procedural spin-off HolbyBlue. Its first executive producers were Young and Johnathan Young, who were succeeded by Kathleen Hutchison from 2002 to 2004, Richard Stokes from 2004 to 2006, McHale from 2006 to 2010, Belinda Campbell from 2010 to 2011, Johnathan Young from 2011 to 2013, Oliver Kent from 2013 to 2017 and Simon Harper from 2017. Since the show's initial development, it has become a weekly fixture in the schedule. Holby City airs once a week, all year round, and each series now contains 52 episodes.
 Question: is casualty and holby city the same hospital Context: The Marine Corps has been a component of the U.S. Department of the Navy since 30 June 1834, working closely with naval forces. The USMC operates installations on land and aboard sea-going amphibious warfare ships around the world. Additionally, several of the Marines' tactical aviation squadrons, primarily Marine Fighter Attack squadrons, are also embedded in Navy carrier air wings and operate from the aircraft carriers.
 Question: are the marines a division of the navy Context: Taylor yells for them to drop their gear and make a break for the surface. They swim as fast as they can to the surface near the boat. As they cling to a life ring to get to the boat, one of the sharks bites Lisa's leg and pulls her back down to the water. Lisa fights the shark by hitting it and gouging its eye out, which causes the shark to release her. Captain Taylor and the other men are able to pull Lisa and Kate onto the boat and begin administering first aid. However, as Lisa stares at her hand on the deck of the boat, it is revealed that she has been hallucinating for some time due to the excess nitrogen in her blood from the air tanks. Her leg is still trapped under the cage on the ocean floor as she laughs and imagines that she is talking to Kate on the boat deck. The coast guard comes to rescue her and carries Lisa to the surface without Kate. Lisa, as she is slowly and cautiously being brought to the surface, comes out of her hallucination, and also notices her sister is not with her. She starts to cry and call out to Kate, realising that Kate was killed.
 Question: in the movie 47 meters down does kate die
Yes
Yes
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Yes