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'.

Q: Passage: Hamilton followed his mother as a Christian Scientist, and attended Claremont Fan Court School and then Eton College. He did National Service in the Coldstream Guards from 1955 to 1958. His father had been wounded while serving with the same regiment in the Second World War. Hamilton then worked in the City of London as a gilts broker. He was a member of the London Stock Exchange from 1967 to 1980. He remained in the City for only a short period, leaving when he inherited two estates from his father's cousin. He married his wife, Corinna Dixon, in 1967, and they had four sons together. He succeeded his father as Baron Hamilton of Dalzell in 1990, inheriting land near and properties in the village of Betchworth in Surrey, and a Regency mansion.
 Link Information: none Question: How many students graduated Claremont Fan Court School the year Hamilton left the Coldstream Guards?

A: Answer: none
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Q: Passage: By the 1920s, SCGX was doubling annually and had emerged as the "fastest growing grain market in the world"; transacting 22 million bushels in 1928 (valued at $336 million in 2018), resulting from its location in the heart of the Corn Belt and self-imposed standards before the Grain Standards Act of 1916 including species admittance and non-mixing. However, its growth was limited by shipping rates. With the trucking industry and Interstate Highway System not yet developed, SCGX was constrained by monopolized railroad rates, primarily by the Great Northern Railway. Exhausting their bargaining power with the Interstate Commerce Commission, SCGX President Charles C. Flanley directed future lobbying efforts to unlocking barge navigation of the Missouri River. His initiative was stalled throughout the 1930s by the Great Depression and Dust Bowl. In 1938, a renewed thirteen year campaign led by Secretary William Henry Marriott finally opened commercial navigation of the Missouri River and helped establish the Missouri River Basin Project, which included development of the Gavins Point Dam. The alternate transportation succeeded in breaking the railroad's monopoly. By the 1970s, SCGX was among the largest exchanges in the world; transacting over 100 million bushels annually (valued at $1 billion as of 2018).
 Link Information: The timing of the Great Depression varied across nations; in most countries, it started in 1929 and lasted until the late 1930s. Question: Which 1930s event that stalled the Flanley initiative last the longest?

A: Answer: The Great Depression
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Q: Passage: SR 87 begins on the banks of the Mississippi River in Lauderdale County, just north of the mouth of the Hatchie River. The highway then passes through the community of Fulton, where it has an intersection with SR 207, which provides access to Fort Pillow State Park. SR 87 continues east through wooded areas and passes by the West Tennessee State Penitentiary before coming to the community of Cherry, where it has its first intersection with SR 371. The highway then goes east through farmland and has another intersection with SR 371 before coming to an intersection with US 51/SR 3 and entering the town of Henning. SR 87 enters downtown along Graves Avenue before having a short concurrency with SR 209 (Main Street). SR 87 then leaves Henning along Mc Farland Avenue and passes just south of Durhamville before continuing east and crossing into Haywood County.
 Link Information: it flows generally south for 2320 mi  Question: Which of the two rivers closest to where the SR 87 begins is longer?

A:
Answer: Mississippi River
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