instruction:
In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
question:
Passage: Baldwin built many 4-4-0 "American" type locomotives (the locomotive that built America). Surviving examples of which include the 1872 Countess of Dufferin and 1875's Virginia and Truckee Railroad No.22 "Inyo", but it was perhaps best known for the 2-8-2 "Mikado" and 2-8-0 "Consolidation" types. It was also well known for the unique cab-forward 4-8-8-2 articulateds built for the Southern Pacific Company and massive 2-10-2 for the Atchison, Topeka and Santa Fe Railway. Baldwin also produced their most powerful steam engines in history, the 2-8-8-4 "Yellowstone" for the Duluth, Missabe and Iron Range Railway. The Yellowstone could put down over of Tractive force. They routinely hauled 180 car trains weighing over . The Yellowstones were so good that the DM&IR refused to part with them; they hauled ore trains well into the diesel era, and the last one retired in 1963. Three have been preserved. One of Baldwin's last new and improved locomotive designs were the 4-8-4 "Northern" locomotives. Baldwin's last domestic steam locomotives were 2-6-6-2s built for the Chesapeake and Ohio Railway in 1949. Baldwin 60000, the company's 1926 demonstration steam locomotive, is on display at the Franklin Institute in Philadelphia. On a separate note, the restored and running 2-6-2 steam locomotive at Fort Edmonton Park was built by Baldwin in 1919.
 Link Information: The Southern Pacific Transportation Company was acquired by the Union Pacific Corporation and merged with their Union Pacific Railroad Question: What is the name of the successor company for the company that received 4-8-8-2 articulateds?
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Answer: Union Pacific Corporation


question:
Passage: Indigenous peoples inhabited Missouri for thousands of years before European exploration and settlement. Archaeological excavations along the rivers have shown continuous habitation for more than 7,000 years. Beginning before 1000 CE, there arose the complex Mississippian culture, whose people created regional political centers at present-day St. Louis and across the Mississippi River at Cahokia, near present-day Collinsville, Illinois. Their large cities included thousands of individual residences, but they are known for their surviving massive earthwork mounds, built for religious, political and social reasons, in platform, ridgetop and conical shapes. Cahokia was the center of a regional trading network that reached from the Great Lakes to the Gulf of Mexico. The civilization declined by 1400 CE, and most descendants left the area long before the arrival of Europeans. St. Louis was at one time known as Mound City by the European Americans, because of the numerous surviving prehistoric mounds, since lost to urban development. The Mississippian culture left mounds throughout the middle Mississippi and Ohio river valleys, extending into the southeast as well as the upper river.
 Link Information:  earthworks are artificial changes in land level, typically made from piles of artificially placed or sculpted rocks and soil. Question: What are earthwork mounds made of?
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Answer:  sculpted rocks and soil.


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Passage: Initially called Camp Annapolis Junction, the post was opened as "Camp Admiral" in 1917 on acquired for a training camp. The post was called Camp Meade Cantonment by 1918, Camp Franklin Signal Corps school was located there and in 1919, the Camp Benning tank school—formed from the World War I Camp Colt and Tobyhanna schools—was transferred to the fort before the Tank Corps was disbanded. Renamed to Fort Leonard Wood (February 1928 – March 5, 1929), the fort's Experimental Motorized Forces in the summer and fall of 1928 tested vehicles and tactics in expedition convoys (Camp Meade observers had joined the in-progress 1919 Motor Transport Corps convoy). In 1929, the fort's 1st Tank Regiment encamped on the Gettysburg Battlefield. During World War II, Fort Meade was used as a recruit training post and prisoner of war camp, in addition to a holding center for approximately 384 Japanese, German, and Italian immigrant residents of the U.S. arrested as potential fifth columnists. The Second U.S. Army Headquarters transferred to the post on June 15, 1947; and in 1957, the post became headquarters of the National Security Agency.
 Link Information: none Question: How many prisoners of war were held at Fort Meade during World War II?
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Answer: none