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: 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 dam and hydroelectric power plant were constructed as the Gavins Point Project from 1952 to 1957 by the United States Army Corps of Engineers as part of the Pick-Sloan Plan Question: When was the dam that was part of the Missouri River Basin Project completed?
[A]: Answer: 1957


[Q]: Passage: Everett Station is served by six daily Amtrak trains: four Cascades runs between Seattle and Vancouver, British Columbia, and two Empire Builder runs between Seattle and Chicago. The station is also served by the North Line of Sound Transit's Sounder commuter rail service, running four trains in peak direction towards King Street Station in Seattle during the morning commute and four trains from Seattle during the evening commute, only on weekdays and during special events. Train service to Everett is most often disrupted and canceled during the autumn and winter seasons because of landslides along the shoreline of the Puget Sound, where the BNSF mainline tracks run. During the 2012–2013 winter season, a record-high of 206 passenger trains between Everett and Seattle were canceled, prompting the Washington State Department of Transportation to begin a three-year landslide mitigation project in 2013 that will stabilize slopes above the railroad between Seattle and Everett.
 Link Information: none Question: Has the landslide mitigation project been completed?
[A]: Answer: none


[Q]: Passage: In November 1989, Case scored her first television role playing Dawn Winthrop on the ABC Network soap opera General Hospital. Case wanted to "perfect" her audition prior to screen testing as Dawn, who served as the long-lost daughter of the long-running character Monica Quartermaine (Leslie Charleson). Speaking of the audition, Case stated: "I practiced night and day [...] It was a heavy scene in which Dawn learned that her boyfriend Ned (Kurt Robin McKinney) had once slept with her mother! I knew I had to do the best job [possible]". She departed General Hospital the next year, after a guest appearance on another ABC series, the comedy drama Doogie Howser, M.D.. In 1991, Case appeared in various other television series, including Diplomatic Immunity, Beverly Hills, 90210, Parker Lewis Can't Lose and Cheers. From November 1992 to 1993 Case stepped into her second soap opera role, as Debbie Simon on the CBS Network drama As the World Turns. Case has stated that she loved the role, and wanted to stay on to explore more into the character of Debbie who was a "manic depressive", an issue that hadn't been covered on daytime television. During this, she also appeared on the CBS crime drama Silk Stalkings as Bonnie Abagail. In 1994, a year after departing from As the World Turns, she became a regular on the primetime soap opera Valley of the Dolls, which was based on the romantic novel of the same name. In 1997, Case had a role in the HBO film Breast Men. Previously, she turned down a larger role in the film due to being uncomfortable topless on-screen. Instead, she accepted a smaller, clothed role.
 Link Information: none Question: How many episdoes had Monica Quartermaine been on General Hospital before Case's character was introduced?
[A]:
Answer: none