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 blastocyst is a structure formed in the early development of mammals. It possesses an inner cell mass (ICM) which subsequently forms the embryo. The outer layer of the blastocyst consists of cells collectively called the trophoblast. This layer surrounds the inner cell mass and a fluid-filled cavity known as the blastocoele. The trophoblast gives rise to the placenta. The name ``blastocyst'' arises from the Greek βλαστός blastos (``a sprout'') and κύστις kystis (``bladder, capsule'').
 Question: does the entire blastocyst develop into a fetus Context: Today, like the currency of most nations, the dollar is fiat money, unbacked by any physical asset. A holder of a federal reserve note has no right to demand an asset such as gold or silver from the government in exchange for a note. Consequently, some proponents of the intrinsic theory of value believe that the near-zero marginal cost of production of the current fiat dollar detracts from its attractiveness as a medium of exchange and store of value because a fiat currency without a marginal cost of production is easier to debase via overproduction and the subsequent inflation of the money supply.
 Question: is the united states currency backed by gold Context: The Commonwealth comprises 53 countries, across all continents. The members have a combined population of 2.3 billion people, almost a third of the world population, of which 1.26 billion live in India and 94% live in Asia and Africa combined. After India, the next-largest Commonwealth countries by population are Pakistan (180 million), Nigeria (170 million), Bangladesh (156 million), the United Kingdom (65 million), South Africa (55 million) Canada (36 million), Ghana (27 million) and Australia (24 million). Tuvalu is the smallest member, with about 10,000 people.
 Question: is india a member of the commonwealth of nations Context: An aftershock is a smaller earthquake that follows larger earthquake, in the same area of the main shock, caused as the displaced crust adjusts to the effects of the main shock. Large earthquakes can have hundreds to thousands of instrumentally detectable aftershocks, which steadily decrease in magnitude and frequency according to known laws. In some earthquakes the main rupture happens in two or more steps, resulting in multiple main shocks. These are known as doublet earthquakes, and in general can be distinguished from aftershocks in having similar magnitudes and nearly identical seismic waveforms.
 Question: can an aftershock be stronger than an earthquake Context: In mathematics, a set A is a subset of a set B, or equivalently B is a superset of A, if A is ``contained'' inside B, that is, all elements of A are also elements of B. A and B may coincide. The relationship of one set being a subset of another is called inclusion or sometimes containment. A is a subset of B may also be expressed as B includes A; or A is included in B.
 Question: can a set be an element of another set
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