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: A Walk in the Woods is a 2015 American biographical comedy-drama film directed by Ken Kwapis, based on the 1998 book/memoir of the same name by Bill Bryson. The film stars Robert Redford, Nick Nolte and Emma Thompson. The film was released on September 2, 2015, by Broad Green Pictures.
 Question: is the movie a walk in the woods based on a true story Context: McCormick Place station is a commuter rail station in Chicago underneath McCormick Place, Chicago's main convention center, that serves the Metra Electric Line north to the Millennium Station and south to University Park, Blue Island, and South Chicago; and the South Shore Line to Gary and South Bend, Indiana.
 Question: does the south shore train stop at mccormick place Context: Alaska is the largest state in the United States by total area at 663,268 square miles (1,717,856 km), over twice the size of Texas, the next largest state. Alaska is larger than all but 18 sovereign countries. Counting territorial waters, Alaska is larger than the combined area of the next three largest states: Texas, California, and Montana. It is also larger than the combined area of the 22 smallest U.S. states.
 Question: is alaska almost as big as the united states Context: Castor oil is a vegetable oil obtained by pressing the seeds of the castor oil plant (Ricinus communis). The common name ``castor oil'', from which the plant gets its name, probably comes from its use as a replacement for castoreum, a perfume base made from the dried perineal glands of the beaver (castor in Latin).
 Question: is vegetable oil and castor oil the same Context: Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. The best known brand name of PTFE-based formulas is Teflon by Chemours. Chemours is a 2015 spin-off of DuPont Co., which discovered the compound in 1938.
 Question: is teflon tape and ptfe the same thing Context: The waterway allows passage from the Atlantic Ocean to the inland port of Duluth on Lake Superior, a distance of 2,340 miles (3,770 km) and to Chicago, on Lake Michigan, at 2,250 miles (3,620 km).
 Question: are the great lakes connected to the atlantic ocean Context: The Greenland shark (Somniosus microcephalus), also known as the gurry shark or grey shark, or by the Kalaallisut name eqalussuaq, is a large shark of the family Somniosidae (``sleeper sharks''), closely related to the Pacific and southern sleeper sharks. The distribution of this species is mostly restricted to the waters of the North Atlantic Ocean and Arctic Ocean.
 Question: do any sharks live in the arctic ocean Context: The Jackson 5, or Jackson Five, currently known as The Jacksons, are an American family music group. Formed in 1964, the founding members were elder brothers Jackie, Tito and Jermaine. Younger brothers Marlon and Michael would join soon after. They participated in talent shows and performed in clubs on the Chitlin' Circuit. They entered the professional music scene in 1967, signing with Steeltown Records and releasing two singles with the Steeltown label. In 1969, the group left Steeltown Records and signed with Motown.
 Question: was michael jackson part of the jackson 5
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