Question: What was the 2010 population of the town attacked by John W. Reid in August 1856?

full_context: Document 1: Osage City, Kansas: Osage City is a city in Osage County, Kansas, United States. As of the 2010 census, the city population was 2,943.
Document 2: John Brown (abolitionist): John Brown (May 9, 1800 – December 2, 1859) was an American abolitionist who believed and advocated that armed insurrection was the only way to overthrow the institution of slavery in the United States. Brown first gained attention when he led small groups of volunteers during the Bleeding Kansas crisis of 1856. Dissatisfied with the pacifism of the organized abolitionist movement, he said, "These men are all talk. What we need is action—action!" During the Kansas campaign, Brown commanded forces at the Battle of Black Jack and the Battle of Osawatomie. He and his supporters killed five supporters of slavery in the Pottawatomie massacre of May 1856 in response to the sacking of Lawrence by pro-slavery forces.
Document 3: Southeast Kansas: Southeast Kansas is a region of the U.S. state of Kansas. It can be roughly defined by Woodson County in the northwest, Bourbon County in the northeast, Cherokee County in the southeast, and Montgomery County in the southwest. Geographically it is dominated by a broad rolling landscape located between the Flint Hills to the west and includes the Ozarks to the southeast. Some notable towns there include Pittsburg, Parsons, Coffeyville, Independence, Chanute, Fort Scott, and Iola. The region has a land area of 13,624.13 km² (5,260.30 sq mi) and a 2000 census population of 180,815 inhabitants. It has 6.43% of the state's land area and 6.726% of its population. It is dominated by a broad rolling landscape that includes the Ozarks. It receives more precipitation than any other part of Kansas. Southeast Kansas is located in the tallgrass prairie ecosystem of North America. Originally inhabited by several Native American tribes, frontier towns largely dependent on cattle ranching, and mining, were wracked by violence over the issue of slavery both before and during the American Civil War. Southeast Kansas offers one of the premier reconstructions of early life in the United States Army at Fort Scott National Historic Site.
Document 4: Osage County, Kansas: Osage County (county code OS) is a county located in the U.S. state of Kansas. As of the 2010 census, the county population was 16,295. Its county seat is Lyndon, and its most populous city is Osage City. The county was originally organized in 1855 as Weller County, and was renamed in 1859 after the Osage River that runs through it, which is itself named for the Osage Native American Tribe.
Document 5: Battle of Black Jack: The Battle of Black Jack took place on June 2, 1856, when anti-slavery forces, led by the noted abolitionist John Brown, attacked the encampment of Henry C. Pate near Baldwin City, Kansas. The battle is cited as one incident of "Bleeding Kansas" and a contributing factor leading up to the American Civil War of 1861 to 1865.
Document 6: Pottawatomie massacre: The Pottawatomie massacre occurred during the night of May 24 and the morning of May 25, 1856. In reaction to the sacking of Lawrence, Kansas by pro-slavery forces, John Brown and a band of abolitionist settlers—some of them members of the Pottawatomie Rifles—killed five settlers north of Pottawatomie Creek in Franklin County, Kansas. This was one of the many bloody episodes in Kansas preceding the American Civil War, which came to be known collectively as Bleeding Kansas. Bleeding Kansas was largely brought about by the Missouri Compromise and the Kansas–Nebraska Act.
Document 7: Mount Oread Civil War posts: Lawrence, Kansas was not well defended in the early part of the Civil War. That ended with William Quantrill's devastating guerrilla raid August 21, 1863. By early 1864 Union soldiers were permanently camped on the top and slopes of Mount Oread, then to Lawrence's southwest. It seems the camp was originally named Camp Ewing, after Brig. Gen. Thomas Ewing.
Document 8: Pottawatomie County, Kansas: Pottawatomie County (standard abbreviation: PT) is a county located in the U.S. state of Kansas. As of the 2010 census, the county population was 21,604. The county seat is Westmoreland. The county takes its name from the Potawatomi tribe of Native Americans.
Document 9: Osage, Oklahoma: Osage is a town in Osage County, Oklahoma, United States. Also known as Osage City, it lies within the Osage Reservation on the shore of Lake Keystone. The population was 156 at the 2010 census, down 17 percent from 188 at the 2000 census.
Document 10: Osawatomie, Kansas: Osawatomie is a city in Miami County, Kansas, United States, 61 mi southwest of Kansas City. As of the 2010 census, the city population was 4,447. It derives its name from two streams nearby, the Osage and Potawatomie.
Document 11: Lawrence massacre: The Lawrence massacre, also known as Quantrill's raid, was an attack during the American Civil War (1861-1865) by the Quantrill's Raiders, a Confederate guerilla group led by William Quantrill, on the Unionist town of Lawrence, Kansas.
Document 12: Battle of Osawatomie: The Battle of Osawatomie took place on August 30, 1856 when 250-400 Border Ruffians led by John W. Reid attacked the town of Osawatomie. Reid was intent on destroying the free state settlement and then moving on to Topeka and Lawrence to do more of the same. John Brown first learned of the raiders when they shot his son Frederick. With 40 or so men, Brown tried to defend the town against the pro-slavery partisans, but had to withdraw; the town of Osawatomie was then looted and burned. This was one event in series of clashes between abolitionists and pro-slavery Missourians in what has been known as Bleeding Kansas.
Document 13: Marais des Cygnes massacre: The Marais des Cygnes massacre ( , , or ) is considered the last significant act of violence in Bleeding Kansas prior to the outbreak of the American Civil War. On May 19, 1858, approximately 30 men led by Charles Hamilton, a Georgian native and proslavery leader, crossed into the Kansas Territory from Missouri. They arrived at Trading Post, Kansas, in the morning and then headed back to Missouri. Along the way they captured 11 Free-Staters, none of whom were armed and, it is said, none of whom had participated in the ongoing violence. Most of the men knew Hamilton and apparently did not realize he meant them harm. These prisoners were led into a defile, where Hamilton ordered the men to shoot. He even shot and fired the first bullet himself. Five men were killed.
Document 14: Merriam, Kansas: Merriam is a city in Johnson County, Kansas, United States, and part of the Kansas City Metropolitan Area. As of the 2010 census, the city population was 11,003. It is bordered by the cities of Overland Park to the east and south, Shawnee to the west, and Kansas City, Kansas to the north (in Wyandotte County); the city of Lenexa is less than a mile to the southwest. Merriam is included in the Shawnee Mission postal designation.
Document 15: Kansas City, Kansas: Kansas City is the third-largest city in the state of Kansas, the county seat of Wyandotte County, and the third-largest city of the Kansas City metropolitan area. Kansas City, Kansas is abbreviated as "KCK" to differentiate it from Kansas City, Missouri. It is part of a consolidated city-county government known as the "Unified Government". Wyandotte County also includes the independent cities of Bonner Springs and Edwardsville. As of the 2010 census, the city had a population of 145,786 residents. It is situated at Kaw Point, which is the junction of the Missouri and Kansas rivers.
ground_truth: 4,447