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 Vegas Golden Knights are a professional ice hockey team based in the Las Vegas metropolitan area. The team began play in the 2017--18 NHL season, and is a member of the Pacific Division of the Western Conference of the National Hockey League (NHL). The team is owned by Black Knight Sports & Entertainment, a consortium led by Bill Foley. The team plays its home games at T-Mobile Arena on the Las Vegas Strip in Paradise, Nevada.
 Question: is there a hockey team in las vegas Context: Although the terminal has been officially called ``Grand Central Terminal'' since the present structure opened, it has ``always been more colloquially and affectionately known as Grand Central Station'', a name of one of the earlier railroad stations on the same site. ``Grand Central Station'' is the name of the nearby U.S. Post Office station at 450 Lexington Avenue, but may also refer to the Grand Central--42nd Street subway station that is located next to the terminal. The name was also used for the renovated Grand Central Depot, from 1900 until its demolition in 1903.
 Question: is there a post office in grand central station Context: In the spring of 492 BC an expeditionary force, to be commanded by Darius's son-in-law Mardonius, was assembled, consisting of a fleet and a land army. Whilst the ultimate aim was to punish Athens and Eretria, the expedition also aimed to subdue as many of the Greek cities as possible. Departing from Cilicia, Mardonius sent the army to march to the Hellespont, whilst he travelled with the fleet. He sailed round the coast of Asia Minor to Ionia, where he spent a short time abolishing the tyrannies that ruled the cities of Ionia. Ironically, since the establishment of democracies had been a key factor in the Ionian Revolt, he replaced the tyrannies with democracies.
 Question: the persian empire attacked greece by both land and sea Context: The Chiefs have won three AFL championships, in 1962, 1966, and 1969 and became the second AFL team (after the New York Jets) to defeat an NFL team in an AFL--NFL World Championship Game, when they defeated the Minnesota Vikings in Super Bowl IV. The team's victory on January 11, 1970, remains the club's last championship game victory and appearance to date, and occurred in the final such competition prior to the leagues' merger coming into full effect. The Chiefs were also the second team, after the Green Bay Packers, to appear in more than one Super Bowl (and the first AFL team to do so) and the first to appear in the championship game in two different decades.
 Question: have the kansas city chiefs ever been to the superbowl
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Yes