Question: What is the population of Desmet in the state Philip Testerman was born?

full_context: Document 1: Buffalo County, South Dakota: In 2010, the center of population of South Dakota was located in eastern Buffalo County. The Crow Creek Indian Reservation, inhabited by the Crow Creek Sioux Tribe makes up the majority of Buffalo County.
Document 2: Yankton, South Dakota: Yankton is a city in, and the county seat of, Yankton County, South Dakota, United States. The population was 14,454 at the 2010 census. Yankton is the principal city of the Yankton Micropolitan Statistical Area, which includes the entirety of Yankton County, and which had an estimated population of 22,702 as of July 1, 2015.
Document 3: Highmore, South Dakota: Highmore is a city in Hyde County, South Dakota, United States. The population was 795 at the 2010 census. It is the county seat of Hyde County.
Document 4: Phil GiaQuinta: Phil GiaQuinta is a Democratic member of the Indiana House of Representatives, representing the 80th District since November 8, 2006. He currently serves as House Minority Leader.
Document 5: De Smet, South Dakota: De Smet is a city in and the county seat of Kingsbury County, South Dakota, United States. The population was 1,089 at the 2010 census.
Document 6: Philip Testerman: Philip Testerman (born January 12, 1927) was an American politician in the state of South Dakota. He was a member of the South Dakota State Senate and South Dakota House of Representatives. He was Assistant Minority Leader of the Senate from 1979 to 1980. Holding a high school education, he was a farmer and insurance agent.
Document 7: Dakota City, Nebraska: Dakota City is a city in Dakota County, Nebraska, United States. The population was 1,919 at the 2010 census. It is the county seat of Dakota County. Tyson Foods' largest beef production plant is located in Dakota City.
Document 8: Philip W. Johnston: Philip W. Johnston (July 21, 1944 in Chelsea, Massachusetts) is an American businessman, politician and former Secretary of Human Services in Massachusetts and Regional Administrator of Health and Human Services for New England.
Document 9: John B. Heilman: Born in Miller, South Dakota, Heilman served in the United States Marine Corps during World War II. He then went to South Dakota State University. Heilman and his wife bought the Highway Store in Miller, South Dakota and then he worked for the United States Department of Agriculture until he retired. Heilman served in the South Dakota House of Representatives as a Republican 1953-1954. He died in Miller, South Dakota.
Document 10: A. H. Kemper: Kemper was a member of the South Dakota House of Representatives from 1941 to 1944. He was a Republican. Kemper was elected from Sioux Falls, where he had lived.
Document 11: Denton Darrington: Senator Denton Darrington was born in Burley, ID and currently lives in Declo, ID. He graduated from Declo High School. Darrington is married to Virgene Lind Darrington and they have five children. Darrington attends The Church of Jesus Christ of Latter-day Saints. Senator Denton Darrington has a B.S. in Agriculture in 1963 and Post Graduate work from Utah State University. He also has Post Bachelor's work in Education from Idaho State University. Denton has been a farmer since 1965. He taught Idaho and American History for Burley Junior High School from 1966 to 1999. Darrington has been a member of many organizations, including Cassia County Farm Bureau, Cassia County Historical Society, and Mini-Cassia Chamber of Commerce. Also, he has made many travels. Denton has a wide range of Legislative experience and held many different positions. He served 15 terms with the Idaho State Senate from 1982 to 2012. Following redistricting in 2012 he declined to run against Republican State Senator Dean L. Cameron when the counties of Cassia and Minidoka were combined into a single legislative district.
Document 12: Jon Tester: Raymond Jon Tester (born August 21, 1956) is an American politician serving as the senior United States Senator from Montana, a seat he was first elected to in 2006. He is a member of the Democratic Party.
Document 13: Custer, South Dakota: Custer is a city in Custer County, South Dakota, United States. The population was 1,987 at the 2010 census. It is the county seat of Custer County.
Document 14: Hayti, South Dakota: Hayti (pronounced "HAY-tie") is a town in Hamlin County, South Dakota, United States. The population was 381 at the 2010 census. It is part of the Watertown, South Dakota Micropolitan Statistical Area. It is the county seat of Hamlin County.
Document 15: Armour, South Dakota: Armour is a city in and the county seat of Douglas County, South Dakota, United States. The population was 699 at the 2010 census.
ground_truth: 1,089
sub_queries: Philip Testerman >> place of birth Answer: South Dakota
what is the population of desmet South Dakota Answer: 1,089