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'.

[EX 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?
[EX A]: Answer: The Great Depression

[EX Q]: Passage: The 1938 UCLA Bruins football team represented the University of California, Los Angeles (UCLA) in the 1938 college football season. Coached by William H. Spaulding, the Bruins finished the season with a 7–4–1 record and made their first postseason appearance in a bowl game. The Pineapple Bowl featured the Bruins playing the on January 2, 1939, in Honolulu. The Bruins season offense scored 217 points while the defense allowed 106 points. George Pfeiffer and Hal Hirshon served as Co-Captains of the team. Center John Ryland was selected to the PCC First-Team All Coast and drafted by the Cleveland Rams of the National Football League (NFL) in 1939. The team also featured future Baseball Hall of Famer Jackie Robinson, Hollywood actor Woody Strode, Football Hall of Famer Kenny Washington. and Bill Overlin.
 Link Information: none Question: Who was the dean of UCLA in 1938?
[EX A]: Answer: none

[EX Q]: Passage: Ferrell's biography follows the course of Truman's life from his birth in 1884 in Lamar, Missouri to his 1972 death and burial at the Truman Library in Independence. The first five chapters examine his service as a captain in World War I, his pre-politics careers in banking, farming, and a failed run as a haberdasher which ended in bankruptcy, and marriage to Bess Truman in 1919. Chapters six to eight look at his early political career, launched by Kansas City boss Tom Pendergast, beginning with his election as a county judge in 1922, then senator in 1934, and in 1944, vice president to Franklin Roosevelt, in a behind-the-scenes compromise Ferrell calls "the most extraordinary political arrangement of the present century"—Democratic Party leaders could see that the extremely ill Roosevelt was unlikely to survive his fourth term in office, and had to convince him to drop then-VP Henry Wallace in favor of Truman, who was felt to be a more "reliable" man. Truman ascended to the presidency upon Roosevelt's death in 1945, and this period in Truman's life is covered in chapters nine to 17—the majority of the book—including Truman's decision to detonate atomic weapons on Hiroshima and Nagasaki to force an end to World War Two, his unexpectedly successful reelection in 1948, his civil-rights initiatives, and his administration's handling of foreign-policy issues, most prominently the Korean War.
 Link Information: Elizabeth Virginia "Bess" Truman (née Wallace; February 13, 1885 – October 18, 1982) Question: How old was Bess Truman at the time of her marriage?
[EX A]:
Answer: 34

