The problem: Answer a question about this article:
Reform of the liturgy had been a part of the liturgical movements in the 20th century mainly in France, and Germany which were officially recognized by Pius XII in his encyclical Mediator Dei. During the pontificate of Pius XII, the Vatican eased regulations on the use of Latin in Roman Catholic liturgies, permitting some use of vernacular languages during baptisms, funerals and other events. In 1951 and 1955, the Easter liturgies underwent revision, most notably including the reintroduction of the Easter Triduum. The Second Vatican Council made no changes to the Roman Missal, but in the document Sacrosanctum Concilium mandated that a general revision of it take place. After the Vatican Council, in April 1969, Paul VI approved the "new Order of Mass" promulgated in 1970, as stated in the Acta Apostolica Sedis to "end experimentation" with the Mass and which included the introduction of three new Eucharistic Prayers to what was up to then a single Roman Canon.
What were revised between 1951 and 1955?
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The answer: Easter liturgies


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Over 50% of undergraduate students live on campus. Most of the residence halls on campus are located on the South 40, named because of its adjacent location on the south side of the Danforth Campus and its size of 40 acres (160,000 m2). It is the location of all the freshman buildings as well as several upperclassman buildings, which are set up in the traditional residential college system. All of the residential halls are co-ed. The South 40 is organized as a pedestrian-friendly environment wherein residences surround a central recreational lawn known as the Swamp. Bear's Den (the largest dining hall on campus), the Habif Health and Wellness Center (Student Health Services), the Residential Life Office, University Police Headquarters, various student-owned businesses (e.g. the laundry service, Wash U Wash), and the baseball, softball, and intramural fields are also located on the South 40.
How did the South 40 get its name?
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The answer: because of its adjacent location on the south side of the Danforth Campus and its size of 40 acres


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The primary circadian "clock" in mammals is located in the suprachiasmatic nucleus (or nuclei) (SCN), a pair of distinct groups of cells located in the hypothalamus. Destruction of the SCN results in the complete absence of a regular sleep–wake rhythm. The SCN receives information about illumination through the eyes. The retina of the eye contains "classical" photoreceptors ("rods" and "cones"), which are used for conventional vision. But the retina also contains specialized ganglion cells that are directly photosensitive, and project directly to the SCN, where they help in the entrainment (synchronization) of this master circadian clock.
Where are these cell groups found in humans?
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The answer: hypothalamus


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Google does not provide detailed figures for YouTube's running costs, and YouTube's revenues in 2007 were noted as "not material" in a regulatory filing. In June 2008, a Forbes magazine article projected the 2008 revenue at $200 million, noting progress in advertising sales. In January 2012, it was estimated that visitors to YouTube spent an average of 15 minutes a day on the site, in contrast to the four or five hours a day spent by a typical U.S. citizen watching television. In 2012, YouTube's revenue from its ads program was estimated at 3.7 billion. In 2013 it nearly doubled and estimated to hit 5.6 billion dollars according to eMarketer, others estimated 4.7 billion,
Youtube's financial records are not reported by who?
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The answer:
Google