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: Unlike a four-stroke engine, whose crankcase is closed except for its ventilation system, a two-stroke engine uses the crankcase as part of the induction tract, and therefore, oil must be mixed with gasoline to be distributed throughout the engine for lubrication. The resultant mix is referred to as petroil. This oil is ultimately burned along with the fuel as a total-loss oiling system. This results in increased exhaust emissions, sometimes with excess smoke and/or a distinctive odor.
 Question: is there a difference in 2 stroke oil Context: The NBA high school draftees are players who have been drafted to the National Basketball Association (NBA) straight out of high school without playing basketball at the collegiate level. The process of jumping directly from high school to the professional level is also known as going prep-to-pro. Since 2006, the practice of drafting high school players has been prohibited by the new collective bargaining agreement, which requires that players who entered the draft be 19 years of age and at least one year removed from high school. Contrary to popular belief, the player does not have to play at least a year in college basketball, as the player can choose to instead play in another professional league (like the NBA G League or especially somewhere overseas) like Brandon Jennings or Emmanuel Mudiay in Italy and China respectively, simply take the year off, such as the case with Mitchell Robinson, or even hold themselves back a year in high school before declaring for the draft, like with Satnam Singh Bhamara or Thon Maker.
 Question: does the nba draft out of high school Context: The .50 Caliber BMG Regulation Act of 2004 is a law in the state of California that effectively banned all .50 BMG-caliber rifles from being sold in the state. The law took effect on January 1, 2005.
 Question: can you buy a 50 cal in california Context: In January 1975 Eric Clapton played on Jamaican singer Arthur Louis' recording of ``Knockin' on Heaven's Door'' arranged in a reggae style. Subsequently, Clapton recorded his own reggae-style version of the song which was released in August 1975, two weeks after Louis's version was released as a single in July 1975. Clapton's single peaked at No. 38 in the UK Singles Chart. The single was less successful in the US, only reaching No. 109 in Cash Box. Clapton's 1996 boxed set Crossroads 2: Live in the Seventies features a performance recorded in London in April 1977. The song was also performed during the Journeyman and One More Car, One More Rider world tours in 1990 and 2003. Additionally, the song has been included on several Clapton compilation albums, such as Time Pieces: The Best of Eric Clapton, Backtrackin', The Cream of Clapton and Complete Clapton.
 Question: did eric clapton ever sing knocking on heaven's door
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