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: During a camping trip, O'Malley learns that Torres has slept with chief of plastic surgery Mark Sloan (Eric Dane), and also discovers that Burke is experiencing tremors in his hand. When O'Malley's father is diagnosed with esophageal cancer and a leaking aortic valve, he refuses to allow Burke to operate on him, instead contacting Erica Hahn (Brooke Smith), Burke's medical school rival. His relationship with Torres is strained when he confronts her about sleeping with Sloan, but he allows her to support him through his father's deteriorating health. Complications from his father's surgery leave him in multi-system organ failure, and his life support is turned off. In an attempt to overcome his grief, O'Malley elopes with Callie to Las Vegas. He later begins to feel that he was mistaken to marry her, and sleeps with Stevens while intoxicated. Stevens confesses that she is in love with him, so O'Malley considers transferring to a different hospital so he can be faithful to his wife. However, he is ineligible to transfer after failing the intern exams. O'Malley decides to repeat his intern year, and confesses to Torres that he slept with Stevens, leading the two to separate. O'Malley and Stevens embark on a short-lived relationship, only to discover there is no real chemistry between them.
 Question: does george's father die in grey's anatomy Context: A mid-ocean ridge (MOR) is an underwater mountain system formed by plate tectonics. It consists of various mountains linked in chains, typically having a valley known as a rift running along its spine. This type of oceanic mountain ridge is characteristic of what is known as an 'oceanic spreading center', which is responsible for seafloor spreading. The production of new seafloor results from mantle upwelling in response to plate spreading; this isentropic upwelling solid mantle material eventually exceeds the solidus and melts. The buoyant melt rises as magma at a linear weakness in the oceanic crust, and emerges as lava, creating new crust upon cooling. A mid-ocean ridge demarcates the boundary between two tectonic plates, and consequently is termed a divergent plate boundary.
 Question: is a mid ocean ridge a divergent boundary Context: Harry Potter and the Half-Blood Prince is a 2009 fantasy film directed by David Yates and distributed by Warner Bros. Pictures. It is based on the 2005 novel of the same name by J.K. Rowling. The film, which is the sixth instalment in the Harry Potter film series, was written by Steve Kloves and produced by David Heyman and David Barron. The story follows Harry Potter's sixth year at Hogwarts as he receives a mysterious textbook, falls in love, and attempts to retrieve a memory that holds the key to Lord Voldemort's downfall.
 Question: is harry potter and the half blood prince in two parts
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