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: Calcium hydroxide (traditionally called slaked lime) is an inorganic compound with the chemical formula Ca(OH). It is a colorless crystal or white powder and is obtained when calcium oxide (called lime or quicklime) is mixed, or slaked with water. It has many names including hydrated lime, caustic lime, builders' lime, slack lime, cal, or pickling lime. Calcium hydroxide is used in many applications, including food preparation. Limewater is the common name for a saturated solution of calcium hydroxide.
 Question: is hydrated lime the same as calcium hydroxide Context: The return address is not required on postal mail. However, lack of a return address prevents the postal service from being able to return the item if it proves undeliverable; such as from damage, postage due, or invalid destination. Such mail may otherwise become dead letter mail.
 Question: do you have to have a return address on an envelope Context: Since the 1960s, South Korea has emerged as a major football power in Asia and is historically the most successful Asian football team, having participated in nine consecutive and ten overall FIFA World Cup tournaments, the most for any Asian country. Despite initially going through five World Cup tournaments without winning a match, South Korea became the first and currently only Asian team to reach the semi-final stages when they co-hosted the 2002 tournament with Japan. They have since improved their ability to play on foreign soil and were able to reach the Round of 16 in the 2010 World Cup. South Korea won the first two AFC Asian Cup tournaments though they have been unable to win since, finishing second in 1972, 1980, 1988, and 2015, and third in 1964, 2000, 2007, and 2011. They also took the gold medal at the 1970, 1978, and 1986 Asian Games. They have qualified for every FIFA World Cup since 1986.
 Question: have south korea qualified for the world cup Context: The saphenous nerve (long or internal saphenous nerve) is the largest cutaneous branch of the femoral nerve. It is a strictly sensory nerve, and has no motor function.
 Question: does the femoral nerve turn into the saphenous nerve Context: Menopause, also known as the climacteric, is the time in most women's lives when menstrual periods stop permanently, and they are no longer able to bear children. Menopause typically occurs between 49 and 52 years of age. Medical professionals often define menopause as having occurred when a woman has not had any vaginal bleeding for a year. It may also be defined by a decrease in hormone production by the ovaries. In those who have had surgery to remove their uterus but still have ovaries, menopause may be viewed to have occurred at the time of the surgery or when their hormone levels fell. Following the removal of the uterus, symptoms typically occur earlier, at an average of 45 years of age.
 Question: menopause is considered the cessation or end of ovulation
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