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 teaching assistant or teacher's aide (TA) or education assistant (EA) is an individual who assists a teacher with instructional responsibilities. TAs include: graduate teaching assistants (GTAs), who are graduate students; undergraduate teaching assistants (UTAs), who are undergraduate students; secondary school TAs, who are either high school students or adults; and elementary school TAs, who are adults (also known as paraprofessional educators or teacher's aides). By definition, TAs assist with classes, but many graduate students serve as the sole instructor for one or more classes each semester as a teaching fellow or graduate student instructor. Graduate and adult TAs generally have a fixed salary determined by each contract period (usually a semester or an academic year); however, undergraduates and high school students are sometimes unpaid and, in the US and other countries with the credit system, receive course credits in return for their assistance. Teaching assistants often help the main teacher by managing students with learning disabilities, such as ADHD, Autism, or even physical disabilities, such as blindness or deafness.
 Question: do you have to be a grad student to be a ta Context: Sky Cinema (formerly Sky Movies) is the collective name for the premium subscription television film channels operated in the United Kingdom and the Republic of Ireland by Sky plc. The UK and Ireland channels have over 5 million subscribers, via satellite, cable and IPTV. In addition to the television channels, it has an interactive 'red button' service, a website (sky.com/movies) and in 2005 launched a 3G mobile service via Vodafone.
 Question: is sky movies the same as sky cinema Context: The four-leaf clover is a rare variation of the common three-leaf clover. According to traditional superstition, such clovers bring good luck, though it is not clear when or how that superstition got started. The earliest mention of ``Fower-leafed or purple grasse'' is from 1640 and simply says that it was kept in gardens because it was ``good for the purples in children or others''. A description from 1869 says that four-leaf clovers were ``gathered at night-time during the full moon by sorceresses, who mixed it with vervain and other ingredients, while young girls in search of a token of perfect happiness made quest of the plant by day''. The first reference to luck might be from an 11-year-old girl, who wrote in an 1877 letter to St. Nicholas Magazine, ``Did the fairies ever whisper in your ear, that a four-leaf clover brought good luck to the finder?''
 Question: is there such a thing as a four leaf clover Context: Station 19 is an American action-drama television series created by Stacy McKee for ABC. McKee, Shonda Rhimes, Betsy Beers, and Paris Barclay serve as executive producers on the series, which is the second spin-off to Grey's Anatomy. Set in Seattle, the series focuses on the lives of the men and women at Seattle Fire Station 19. The series is produced by Shondaland and ABC Studios, with McKee serving as showrunner.
 Question: is there a spin off of grey's anatomy
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