[Q]: Question: "what belief system is mentioned second?"  Context: "At the time, there were many varying opinions about Christian doctrine, and no centralized way of enforcing orthodoxy. Constantine called all the Christian bishops throughout the Roman Empire to a meeting, and some 318 bishops (very few from the Western Empire) attended the First Council of Nicaea. The purpose of this meeting was to define Christian orthodoxy and clearly differentiate it from Christian heresies. The meeting reached consensus on the Nicene Creed and other statements. Later, Philostorgius criticized Christians who offered sacrifice at statues of the divus Constantine. Constantine nevertheless took great pains to assuage traditionalist and Christian anxieties."  Answer:
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[A]: orthodoxy


[Q]: Question: "In the European unit of measurement how long is the phase two extension of the riverfront project?"  Context: "The Detroit International Riverfront includes a partially completed three-and-one-half mile riverfront promenade with a combination of parks, residential buildings, and commercial areas. It extends from Hart Plaza to the MacArthur Bridge accessing Belle Isle Park (the largest island park in a U.S. city). The riverfront includes Tri-Centennial State Park and Harbor, Michigan's first urban state park. The second phase is a two-mile (3 km) extension from Hart Plaza to the Ambassador Bridge for a total of five miles (8 km) of parkway from bridge to bridge. Civic planners envision that the pedestrian parks will stimulate residential redevelopment of riverfront properties condemned under eminent domain."  Answer:
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[A]: (3 km)


[Q]: Question: "What type of government was the Russian Empire prior to the revolution?"  Context: "The Russian Revolution is the series of revolutions in Russia in 1917, which destroyed the Tsarist autocracy and led to the creation of the Soviet Union. Following the abdication of Nicholas II of Russia, the Russian Provisional Government was established. In October 1917, a red faction revolution occurred in which the Red Guard, armed groups of workers and deserting soldiers directed by the Bolshevik Party, seized control of Saint Petersburg (then known as Petrograd) and began an immediate armed takeover of cities and villages throughout the former Russian Empire."  Answer:
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[A]: Tsarist autocracy


[Q]: Question: "What first made the Notre Dame mascot famous around the US?"  Context: "Notre Dame's conference affiliations for all of its sports except football and fencing changed in July 2013 as a result of major conference realignment, and its fencing affiliation will change in July 2014. The Irish left the Big East for the ACC during a prolonged period of instability in the Big East; while they maintain their football independence, they have committed to play five games per season against ACC opponents. In ice hockey, the Irish were forced to find a new conference home after the Big Ten Conference's decision to add the sport in 2013–14 led to a cascade of conference moves that culminated in the dissolution of the school's former hockey home, the Central Collegiate Hockey Association, after the 2012–13 season. Notre Dame moved its hockey team to Hockey East. After Notre Dame joined the ACC, the conference announced it would add fencing as a sponsored sport beginning in the 2014–15 school year. There are many theories behind the adoption of the athletics moniker but it is known that the Fighting Irish name was used in the early 1920s with respect to the football team and was popularized by alumnus Francis Wallace in his New York Daily News columns. The official colors of Notre Dame are Navy Blue and Gold Rush which are worn in competition by its athletic teams. In addition, the color green is often worn because of the Fighting Irish nickname. The Notre Dame Leprechaun is the mascot of the athletic teams. Created by Theodore W. Drake in 1964, the leprechaun was first used on the football pocket schedule and later on the football program covers. The leprechaun was featured on the cover of Time in November 1964 and gained national exposure."  Answer:
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[A]:
The leprechaun was featured on the cover of Time