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 High School Football National Championship is a national championship honor awarded to the best high school football team(s) in the United States of America based on rankings from USA Today and the National Prep Poll. There have been some efforts over the years at organizing a single-game playoff for the national championship. Sometimes a dominant team in one state would defeat a dominant team in a neighboring state after the regular season and then would self-claim the national championship. However, sometimes such a game could not be scheduled, like in 1936 after Washington High School of Massillon, Ohio refused to withhold its black players in a proposed game with segregated Central High School of Knoxville, Tennessee. Central High subsequently proclaimed itself national champion that year. On December 31, 1938, duPont Manual of Louisville, Kentucky and New Britain of Connecticut played in an actual national championship game in Baton Rouge with the Louisiana Sports Association as the formal sponsor -- and, by extension, the Sugar Bowl Committee, which held a series of sporting events leading up to the Sugar Bowl game itself. Manual won, 28--20. The following year, on December 30, the game featured Pine Bluff, Arkansas, which defeated Baton Rouge High School by a score of 26--0. This series of games proved difficult to organize, due to some states' prohibition of postseason play. Pine Bluff, for example, had to receive a special waiver from its state to participate in the game. In 1962, Florida state champion Miami Senior High beat Baltimore Polytechnic in the Orange Bowl and was recognized by Imperial Sports Syndicate of California as a national champion.
 Question: is there a high school football national championship Context: The Blackhawks opened the 2017--18 season with a resounding 10--1 victory over the Pittsburgh Penguins. The Blackhawks were four games above .500 with an 18--14--6 record at the end of December 2017, and only four points out of a playoff spot. However, goaltender Corey Crawford missed much of 2018 due to an upper-body injury. Inconsistent defense and goaltending, coupled with limited offense resulted in the team falling to the bottom of the Central Division. The Blackhawks were eliminated from playoff contention on March 20, 2018, marking the first time in nine years that the team failed to qualify for the Stanley Cup Playoffs. The team finished the season with a 33--39--10 record and 76 points in the standings.
 Question: is the chicago blackhawks in the stanley cup playoffs Context: Electronegativity, symbol χ, is a chemical property that describes the tendency of an atom to attract a shared pair of electrons (or electron density) towards itself. An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus. The higher the associated electronegativity number, the more an element or compound attracts electrons towards it.
 Question: is there a relationship between atomic number and electronegativity
Yes
Yes
No
Yes