Information:  - Principal Park , formerly Sec Taylor Stadium , is a minor league baseball stadium in Des Moines , Iowa . It is the home field of the Pacific Coast League 's Iowa Cubs .  - The Iowa Cubs are a Triple-A minor league baseball team, affiliated with the Chicago Cubs, that plays in the Pacific Coast League. Their home games are played in Des Moines, Iowa, at Principal Park.  - The International League (IL) is a Minor League Baseball league that operates in the eastern United States and is headquartered in Dublin, Ohio. Like the Pacific Coast League and the Mexican League, it plays at the Triple-A level, which is one step below Major League Baseball. It was so named because it had teams in both the United States and Canada (and for several years in the 1950s in Cuba as well). However, since the relocation of the Ottawa Lynx to Allentown, Pennsylvania, to become the Lehigh Valley IronPigs for the 2008 season, all of the league's teams are now based in the U.S.  - The Pacific Coast League (PCL) is a Minor League Baseball league operating in the Western, Midwestern, and Southeastern United States. Along with the International League and the Mexican League, it is one of three leagues playing at the Triple-A level, which is one grade below Major League Baseball. It is officially named the Pacific Coast League of Professional Baseball Clubs, Inc.  - A county seat is an administrative center, seat of government, or capital city of a county or civil parish. The term is used in the United States, Canada, Romania, China and Taiwan. In the United Kingdom and Ireland, county towns have a similar function.  - At the end of each Major League Baseball season, the league leaders of various statistical categories are announced. Leading the league in a particular category is referred to as a "title".  - Des Moines is the capital and the most populous city in the U.S. state of Iowa. It is also the county seat of Polk County. A small portion of the city extends into Warren County. It was incorporated on September 22, 1851, as Fort Des Moines, which was shortened to "Des Moines" in 1857. It is located on and named after the Des Moines River, which likely was adapted from the French colonial name, "Rivière des Moines," meaning "River of the Monks." The city's population was 203,433 as of the 2010 census. The five-county metropolitan area is ranked 91st in terms of population in the United States with 599,789 residents according to the 2013 estimate by the United States Census Bureau.    Given the information above, choose from the list below the object entity that exhibits the relation 'architect' with the subject 'principal park'.  Choices: - 2008  - populous  - several  - united kingdom  - various
populous
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Information:  - The Cold War was a state of political and military tension after World War II between powers in the Eastern Bloc (the Soviet Union and its satellite states) and powers in the Western Bloc (the United States, its NATO allies and others). Historians do not fully agree on the dates, but a common timeframe is the period (the second half of the 20th century) between 1947, the year the Truman Doctrine (a U.S. policy pledging to aid nations threatened by Soviet expansionism) was announced, and 1991, the year the Soviet Union collapsed.  - Izyaslav ( Russian :  , Belarusian :  ) was the son of Vladimir I of Kiev and Rogneda of Polotsk . Following Norse tradition , Izyaslav was sent with his mother to rule her homeland . There is also a legend that Rogneda tried to get Izyaslav to slay his father . Despite possibly going against the will of his father , Izyaslav was able to continue his rule in Polotsk . He was first to make Polotsk autonomous from the Grand Duke of Kiev passing his title to his descendants after his death . His principality carried a wide degree of autonomy that later was passed and to his descendants as well . His glory was commemorated after an established city that was named after him . Izyaslav died at the young age of about 23 , in 1001 , surviving his mother but predeceasing his father Vladimir of Kiev , thus excluding his descendants from ever succeeding the Kievan throne , according to the so - called `` ladder succession '' . The name of Izyaslav 's spouse is unknown . He had two sons : Bryachislav of Polotsk and Vseslav . Both were certainly minor at the time of his father 's death . Vseslav died , still in childhood , in 1003 , while Bryachislav survived to continue the Polotsk dynasty and to challenge the authority of his uncle Yaroslav the Wise .  - Polotsk or Polatsk is a historical city in Belarus, situated on the Dvina River. It is the center of the Polatsk Raion in Vitebsk Voblast. Its population is more than 80,000 people. It is served by Polotsk Airport and during the Cold War was home to Borovitsy air base.  - Borovitsy (also Borovitsi, Polotsk Northwest, and Borovtsy) is an air base in Belarus, located 16 km northwest of Polatsk. It is a Cold War air base with sprawling taxiway area and pads for about 40 aircraft. During the 1960s it was probably home to attack aircraft regiments, but by the 1980s it was served only by the 276 BVP (276th Combat Helicopter Regiment) flying Mi-8 and Mi-24 helicopters.  - Belarus ( lat. ', ), officially the Republic of Belarus, formerly known by its Russian name Byelorussia (though this name is no longer used in Belarus itself, even in Russian language), is a landlocked country in Eastern Europe bordered by Russia to the northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Its capital and most populous city is Minsk. Over 40% of its is forested. Its strongest economic sectors are service industries and manufacturing. Until the 20th century, different states at various times controlled the lands of modern-day Belarus, including the Principality of Polotsk (11th to 14th centuries), the Grand Duchy of Lithuania, the PolishLithuanian Commonwealth, and the Russian Empire.  - Rogneda of Polotsk (9621002) is the Slavic name for Ragnhild, whose father Ragnvald (Slavic: Rogvolod) came from Scandinavia and established himself at Polatsk in the mid-10th century.   - Rogvolod (c. 920  978) was first chronicled prince of Polatsk (945978). In the Russian Primary Chronicle, he is known as , probably a slavicized version of the Old Norse name "Ragnvald". He came from overseas (i.e., from Scandinavia or Southern Baltic) and established himself at Polatsk in the mid-10th century. According to the Russian Primary Chronicle, Vladimir the Great sought an alliance with him in 980 by marrying his daughter Rogneda, but she insultingly refused, prompting Vladimir to attack Rogvolod and his sons and kill them, after which he forcibly took Rogneda as his wife.    Given the information above, choose from the list below the object entity that exhibits the relation 'date of birth' with the subject 'izyaslav of polotsk'.  Choices: - 1947  - 1991  - 276  - 40  - 8  - 80  - 920  - 945  - 962  - 980
980
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