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 wildebeests, also called gnus, are a genus of antelopes, scientific name Connochaetes. They belong to the family Bovidae, which includes antelopes, cattle, goats, sheep and other even-toed horned ungulates. Connochaetes includes two species, both native to Africa: the black wildebeest, or white-tailed gnu (C. gnou); and the blue wildebeest, or brindled gnu (C. taurinus). Fossil records suggest these two species diverged about one million years ago, resulting in a northern and a southern species. The blue wildebeest remained in its original range and changed very little from the ancestral species, while the black wildebeest changed more in order to adapt to its open grassland habitat in the south. The most obvious way of telling the two species apart are the differences in their colouring and in the way their horns are oriented.
 Question: is a gnu the same as a wildebeest Context: The Singapore chewing gum ban has been in place since 1992. An exception is made for therapeutic, dental or nicotine chewing gum since 2004, which can be bought from a doctor or registered pharmacist.
 Question: is it illegal to chew gum in singapore Context: The hazelnut is the nut of the hazel and therefore includes any of the nuts deriving from species of the genus Corylus, especially the nuts of the species Corylus avellana. It also is known as cobnut or filbert nut according to species. A cob is roughly spherical to oval, about 15--25 mm (0.59--0.98 in) long and 10--15 mm (0.39--0.59 in) in diameter, with an outer fibrous husk surrounding a smooth shell. A filbert is more elongated, being about twice as long as its diameter. The nut falls out of the husk when ripe, about 7 to 8 months after pollination. The kernel of the seed is edible and used raw or roasted, or ground into a paste. The seed has a thin, dark brown skin, which sometimes is removed before cooking.
 Question: is a filbert the same as a hazelnut Context: In several geometries, a triangle has three vertices and three sides, where three angles of a triangle are formed at each vertex by a pair of adjacent sides. In a Euclidean space, the sum of measures of these three angles of any triangle is invariably equal to the straight angle, also expressed as 180 °, π radians, two right angles, or a half-turn.
 Question: do all angles in a triangle add up to 180 degrees Context: This is a list of all penalty shoot-outs that have occurred in the Finals tournament of the FIFA World Cup. Penalty shoot-outs were introduced as tie-breakers in the 1978 World Cup but did not occur before 1982. The first time a World Cup title was won by penalty shoot-out was in 1994. The only other time was in 2006. By the end of the 2018 edition, 30 shoot-outs have taken place in the World Cup. Of these, only two reached the sudden death stage after still being tied at the end of ``best of five kicks''.
 Question: are there penalty kicks in the world cup
Yes
Yes
Yes
Yes
Yes
Yes