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: In 1985, the two islands of Martha's Vineyard and Chappaquiddick Island were included in a new American Viticultural Area designation for wine appellation of origin specification: Martha's Vineyard AVA. Wines produced from grapes grown on the two islands can be sold with labels that carry the Martha's Vineyard AVA designation. Martha's Vineyard was the home to the winemaker Chicama Vineyards in West Tisbury, though it closed after 37 years on August 10, 2008.
 Question: are there wine vineyards on martha's vineyard Context: ``Separation of church and state'' is paraphrased from Thomas Jefferson and used by others in expressing an understanding of the intent and function of the Establishment Clause and Free Exercise Clause of the First Amendment to the Constitution of the United States which reads: ``Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof...''
 Question: are the words separation of church and state in the constitution Context: Many of the varieties that have been cultivated for ornamental use produce small, unpalatable fruit. Edible cherries generally come from cultivars of the related species Prunus avium and Prunus cerasus.
 Question: are cherry blossom trees the same as cherry trees Context: The history of navigation is the history of seamanship, the art of directing vessels upon the open sea through the establishment of its position and course by means of traditional practice, geometry, astronomy, or special instruments. A few people have excelled as seafarers, prominent among them the Austronesians, their descendants the Malays, Micronesians, and Polynesians, the Harappans, the Phoenicians, the ancient Greeks, the Romans, the Arabs, the ancient Indians, the Norse, the Chinese, the Venetians, the Genoese, the Hanseatic Germans, the Portuguese, the Spanish, the English, the French, the Dutch and the Danes.
 Question: can mathematics navigation and physics help a sailor Context: The term conservative force comes from the fact that when a conservative force exists, it conserves mechanical energy. The most familiar conservative forces are gravity, the electric force (in a time-independent magnetic field, see Faraday's law), and spring force.
 Question: is the force of a spring a conservative force Context: After an initial order of 10 episodes, ABC Family ordered an additional 12 episodes for season one on June 28, 2010. The first season's ``summer finale'' aired on August 10, 2010, with the remaining 12 episodes began airing on January 3, 2011. On January 11, 2011, ABC Family picked up Pretty Little Liars for a second season of 24 episodes. It began airing on Tuesday, June 14, 2011. It was announced in June that a special Halloween-themed episode would air as part of ABC Family's 13 Nights of Halloween line-up. This increased the episode count from 24 to 25. On November 29, 2011, ABC Family renewed the series for a third season, consisting of 24 episodes. On October 4, 2012, ABC Family renewed the series for a fourth season, consisting of 24 episodes. On March 26, 2013, ABC Family renewed the series for a fifth season. On January 7, 2014, showrunner I. Marlene King wrote on Twitter that season 5 will have 25 episodes, including a holiday-themed episode. On June 10, 2014, it was announced that the show was renewed for an additional 2 seasons. Season 6 will air in mid-2015, and season 7 will air in mid-2016. It was announced by I. Marlene King that the sixth and the seventh season will consist of 20 episodes each. It was announced on August 29, 2016, that the show would be ending after the seventh season, and that the second half of the season would begin airing April 18, 2017.
 Question: is there new episodes of pretty little liars
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