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: Watson graduated in 1943 with BS in electrical engineering from Iowa State College. From 1943 to 1946 he was a researcher at the United States Naval Research Laboratory in Washington, D.C. During his work for the U.S. Navy he went to night school at George Washington University. He graduated from the University of Iowa with Ph.D. in 1948 with thesis The polarizability of the meson-charge cloud of a neutron in an external electrostatic field. He was from 1948 to 1949 an Atomic Energy Commission (AEC) Fellow at the Institute for Advanced Study and from 1949 to 1951 an AEC Fellow at the Berkeley Radiation Laboratory. He was from 1951 to 1954 an assistant professor of physics at Indiana University and from 1954 to 1957 an associate professor of physics at the University of Wisconsin, Madison. In 1953 he was elected a fellow of the American Physical Society. From 1957 to 1981 he was a staff member of Lawrence Berkeley National Laboratory, as well as a professor of physics at the University of California, Berkeley. In 1974 he was elected a member of the National Academy of Sciences. From 1981 to 1991 he was the director of the Marine Physical Laboratory, Scripps Institute of Oceanography, as well as a professor of physical oceanography at the University of California, San Diego. In 1991 he retired as professor emeritus. His doctoral students include Shang-keng Ma.
Link Information:

The National Academy of Sciences Building is located at 2101 Constitution Avenue, in northwest Washington, D.C.; Question: Where is the organization to which Watson was elected in 1974 headquartered?

A: Answer: Washington, D.C
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Q: Passage: A large portion of the Vilnius area was controlled by the Second Polish Republic during the interwar period, particularly the area of the Republic of Central Lithuania, which had a significant Polish speaking population. For example, the Wilno Voivodeship (25% of it is a part of modern Lithuania and 75% - modern Belarus) in 1931 contained 59.7% Polish speakers and only 5.2% Lithuanian speakers; see Ethnic history of the region of Vilnius for details. From 1918 to 1921 there were several conflicts, such as the activity of the Polish Military Organization, Sejny uprising (that was met with massive outrage in Lithuania) and a discovered attempt at a Polish coup on the Lithuanian government. From the documents stolen from Polish Military Organization headquarters safe in Vilnius and given to Prime Minister of Lithuania Augustinas Voldemaras, it is clear that this plot was directed by Jozef Pisudski himself. The Polish-Lithuanian War and Zeligowski's Mutiny contributed to a worsening of Polish-Lithuanian relations; increasingly Polish people were viewed with suspicion in Lithuania. The loss of Vilnius was a stunning blow to Lithuanian aspirations and identity, and the unrelenting irredentist demand for its return became one of the most important elements of Lithuanian political and social life in the interwar period. The irredentist campaign resulted in the emergence of feelings of hatred and revenge directed against the Poles in the Lithuanian society. In fact, the largest social organization in interwar Lithuania was the League for the Liberation of Vilnius, which propagated irredentist views in its magazine Musu Vilnius (Our Vilnius).
Link Information: refers to a Polish uprising against the Lithuanian authorities in August 1919 Question: Which of the conflicts that occured between 1918 and 1921 occured first?

A: Answer: activity of the Polish Military Organization
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Q: Passage: In response to a downturn in the arcade-game market in the early 1980s, Sega began to develop video game consolesstarting with the SG-1000 and Master Systembut struggled against competing products such as the Nintendo Entertainment System. Around the same time, Sega executives David Rosen and Hayao Nakayama executed a management buyout of the company with backing from CSK Corporation. Sega released its next console, the Sega Genesis (known as the Mega Drive outside North America) in 1988. Although it initially struggled, the Genesis became a major success after the release of Sonic the Hedgehog in 1991. Sega's marketing strategy, particularly in North America, helped the Genesis outsell main competitor Nintendo and their Super Nintendo Entertainment System for four consecutive Christmas seasons in the early 1990s. While the Game Gear and Sega CD achieved less, Sega's arcade business was also successful into the mid 1990s.
Link Information: Around the same time, Sega executives David Rosen and Hayao Nakayama executed a management buyout of the company with backing from CSK Corporation. Question: When was the corporation established that backed the manage buyout of Sega?

A:
Answer: 1968
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