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: No plans were made by the Western Allies to seize the city by a ground operation. The Supreme Commander (Western) Allied Expeditionary Force, General Eisenhower lost interest in the race to Berlin and saw no further need to suffer casualties by attacking a city that would be in the Soviet sphere of influence after the war, envisioning excessive friendly fire if both armies attempted to occupy the city at once. The major Western Allied contribution to the battle was the bombing of Berlin during 1945. During 1945 the United States Army Air Forces launched very large daytime raids on Berlin and for 36 nights in succession, scores of RAF Mosquitos bombed the German capital, ending on the night of 20/21 April 1945 just before the Soviets entered the city.
 Question: was the us involved in the battle of berlin Context: The cervical nerves are the spinal nerves from the cervical vertebrae. Although there are seven cervical vertebrae (C1-C7), there are eight cervical nerves C1--C8. All cervical nerves except C8 emerge above their corresponding vertebrae, while the C8 nerve emerges below the C7 vertebra. Elsewhere in the spine, the nerve emerges below the vertebra with the same name.
 Question: are there the same number of nerves as there are vertebrae in each region Context: The Vampire Diaries, an American supernatural drama, was officially renewed by The CW for a full 22-episode season on February 16, 2010. The first episode premiered on September 9, 2010, at 8 p.m. ET. The season picks up immediately after the events of the season one finale. All the series regulars returned. Season two focuses on the return of Elena Gilbert's (Nina Dobrev) doppelgänger, Katherine Pierce, the introduction of werewolves, the sun and moon curse, and the arrival of the original vampires. Tyler Lockwood's (Michael Trevino) uncle, Mason Lockwood (Taylor Kinney), arrives in town searching for the moonstone, a family heirloom. Tyler later learns of his family's werewolf curse. Meanwhile, Caroline Forbes (Candice Accola) is killed by Katherine while having Damon Salvatore's (Ian Somerhalder) blood in her system, turning her into a vampire. The arrival of the original vampires, Elijah (Daniel Gillies) and Klaus Mikaelson (Joseph Morgan), also bring about complications. Klaus is a vampire-werewolf hybrid, but his werewolf side had been forced into dormancy by witches, as nature would not stand for such an imbalance in power. Therefore, Klaus arrives in town with plans to break the curse and unleash his werewolf side by channelling the power of the full moon into the moonstone, sacrificing a vampire and a werewolf, and drinking the blood of the doppelgänger. The season is currently on air in Urdu on filmax channel in Pakistan. It became available on DVD and Blu-ray on August 30, 2011.
 Question: do the originals come back to vampire diaries
Yes
Yes
No
Yes