Question: What is the population of the city of Williston, in the state where Dakota Prairie High School is located?

full_context: Document 1: Deer Creek Public Schools: A new middle school is located on NW 234th Street just east of N. May. It is for 7th and 8th grades. The old Middle School is now the Intermediate school for 5th and 6th grades. Deer Creek High School enrolls 1,356 students in grades 9 - 12.
Document 2: Deer High School: Deer High School (DHS) is an accredited comprehensive public high school located in Deer, Arkansas, United States. DHS provides secondary education for approximately 95 students in grades 7 through 12. It is one of four public high schools in Newton County and one of two high schools administered by the Deer/Mount Judea School District.
Document 3: Fargo, North Dakota: Fargo is the most populous city in the state of North Dakota, accounting for over 15% of the state population. Fargo is also the county seat of Cass County. According to the 2016 United States Census estimates, its population was 120,762, making it the 229th-most populous city in the United States. Fargo, along with its twin city of Moorhead, Minnesota, as well as the adjacent cities of West Fargo, North Dakota and Dilworth, Minnesota, form the core of the Fargo - Moorhead, ND - MN Metropolitan Statistical Area, which in 2016 contained a population of 238,124. In 2014, Forbes magazine ranked Fargo as the fourth fastest - growing small city in the United States.
Document 4: Dakota Prairie High School: Dakota Prairie High School is part of a school district that covers a portion of Nelson County, North Dakota. It includes the towns of McVille, Michigan City, Tolna, Aneta, Pekin, Kloten, Dahlen, Hamar, Niagera, and Petersburg. There are 177 students currently at Dakota Prairie High School. Dakota Prairie High School is considered a "Class B" school in North Dakota.
Document 5: Zahl, North Dakota: Zahl is an unincorporated community in northwestern Williams County, North Dakota, United States. It lies along North Dakota Highway 50 north of the city of Williston, the county seat of Williams County. Its elevation is 2,014 feet (614 m). Although it is unincorporated, it has a post office, with the ZIP code of 58856.
Document 6: Dallas: Dallas (/ ˈdæləs /) is a city in the U.S. state of Texas. It is the most populous city in the Dallas -- Fort Worth metroplex, which is the fourth most populous metropolitan area in the United States. The city's population ranks ninth in the U.S. and third in Texas after Houston and San Antonio. The city's prominence arose from its historical importance as a center for the oil and cotton industries, and its position along numerous railroad lines. The bulk of the city is in Dallas County, of which it is the county seat; however, sections of the city are located in Collin, Denton, Kaufman, and Rockwall counties. According to the 2010 United States Census, the city had a population of 1,197,816. The United States Census Bureau's estimate for the city's population increased to 1,317,929 as of July 1, 2016.
Document 7: Prairie Creek Community School: Prairie Creek Community School is a K-5, tuition-free, progressive charter school located in Castle Rock Township, Minnesota, United States. Established in 1983, Prairie Creek was founded by a small group of individuals and educators. Prairie Creek Community School became a public charter school in 2002.
Document 8: Brandon Valley School District: The Brandon Valley School District is a public school district in Minnehaha County, South Dakota, United States, based in Brandon, South Dakota. It serves the communities of Brandon and the nearby town of Valley Springs.
Document 9: Wilton, North Dakota: Wilton is a city in Burleigh and McLean counties in the State of North Dakota. It is part of the "Bismarck, ND Metropolitan Statistical Area" or "Bismarck-Mandan". The population was 711 at the 2010 census. Founded in 1899, Wilton was named by General W. D. Washburn after the town of Wilton in his native state of Maine.
Document 10: New Palestine High School: New Palestine High School is a rural public high school (grades 9 - 12) located in New Palestine, Indiana, managed by the Community School Corporation of Southern Hancock County. As of the 2016 - 2017 school year it serves 1,137 students and employed 61 faculty members.
Document 11: Williston, Florida: Williston is a city in Levy County, Florida, United States. As of the 2010 census it had a population of 2,768. The city was established before 1885 by J. M. Willis, who named it after himself.
Document 12: Williston, North Dakota: Williston is a city in and the county seat of Williams County, North Dakota, United States. The 2010 census gave its population as 14,716, and the Census Bureau gave the 2015 estimated population as 26,977, making Williston the sixth largest city in North Dakota. The North Dakota oil boom is largely responsible for the sharp increase in population.
Document 13: Ann Arbor, Michigan: Public schools are part of the Ann Arbor Public Schools (AAPS) district. AAPS has one of the country's leading music programs. In September 2008, 16,539 students had been enrolled in the Ann Arbor Public Schools. There were 21 elementary schools, five middle schools (Forsythe, Slauson, Tappan, Scarlett, and Clague) three traditional high schools (Pioneer, Huron, and Skyline), and three alternative high schools (Community High, Stone School, and Roberto Clemente) in the district. The district also operates a K-8 open school program, Ann Arbor Open School, out of the former Mack School. This program is open to all families who live within the district. Ann Arbor Public Schools also operates a preschool and family center, with programs for at-risk infants and children before kindergarten. The district has a preschool center with both free and tuition-based programs for preschoolers in the district.
Document 14: Montana: The United States Census Bureau estimates that the population of Montana was 1,032,949 on July 1, 2015, a 4.40% increase since the 2010 United States Census. The 2010 census put Montana's population at 989,415 which is an increase of 43,534 people, or 4.40 percent, since 2010. During the first decade of the new century, growth was mainly concentrated in Montana's seven largest counties, with the highest percentage growth in Gallatin County, which saw a 32 percent increase in its population from 2000-2010. The city seeing the largest percentage growth was Kalispell with 40.1 percent, and the city with the largest increase in actual residents was Billings with an increase in population of 14,323 from 2000-2010.
Document 15: Prairie Lea High School (Texas): Prairie Lea High School or Prairie Lea School is a public high school located in Prairie Lea, Texas (USA) and classified as a 1A school by the UIL. It is part of the Prairie Lea Independent School District located in west central Caldwell County. In 2015, the school was rated "Met Standard" by the Texas Education Agency.
ground_truth: 26,977
sub_queries: In which state is Dakota Prairie High School located? Answer: North Dakota
what is the population of williston North Dakota Answer: 26,977