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'.

Passage: Levette J. Davidson was a nationally acclaimed expert in folklore, especially that of Colorado and the West. He was born in Eureka, Illinois May 16, 1894, one of four children. Because his grand uncle was past-President of Eureka College, a Christian seminary, Davidson was reared in the school's shadow with the option of becoming either a teacher or a preacher. He chose teaching and was awarded his B.A. from Eureka in 1915. A year later he received his A.M. degree from the University of Illinois where he received Phi Beta Kappa honors. In 1917 he earned his M.A. in social science and history at Harvard University. __During World War I, he served with the Tenth Infantry of the Forty-Sixth Division and also served as an army sergeant in Intelligence. Davidson and his wife Mary, also a graduate of Eureka, were married in 1918. At the end of the war, Davidson simultaneously taught and studied at the University of Michigan where he earned a Ph.D. in languages and literatures in 1922. He arrived in Denver later that year and began teaching at the University of Denver. Before arriving in Colorado, his academic specialty was eighteenth century England. Once in Denver, he realized that Western literature and folklore would be his life work. Davidson taught at the University of Denver until his death in 1957. His course topics ranged from studies of Shakespeare and other English literature, to folklore in the West. He began teaching news writing and eventually founded the journalism department at the University as well as the board of publications and the press club. He was the first faculty member elected to serve as president of the University Senate. In 1940 he became head of the English Department and from March to August 1953 he served as interim Chancellor. At the time of assuming his post, he remarked: There is hardly an organization on campus that I have not been connected with at one time or another. Davidson was named University Lecturer for 1956. Davidson was a director of the Colorado State Historical Society, the Modern Languages Association, the American Folklore Society, and the American Dialect Society. He was a charter member of the Denver Posse of the Westerners, an organization devoted to western folklore. In spare moments, Davidson conducted research, wrote outlines for plays, and authored a large number of articles. He contributed to a wide range of magazines from Western American to Shakespeare Quarterly. Additionally, Davidson authored several books on folklore. The most widely recognized is Rocky Mountain Tales, which presents regional folklore as well as true accounts of early events in the area. Levette Davidson died May 14, 1957.
 Link Information: Harvard University is a private Ivy League research university in Cambridge, Massachusetts Question: What state was the university Davidson got his M.A. from located in?
Answer: Massachusetts

Passage: In modern times, the creation of relatively simple dome-like structures has been documented among various indigenous peoples around the world. The wigwam was made by Native Americans using arched branches or poles covered with grass or hides. The Efé people of central Africa construct similar structures, using leaves as shingles. Another example is the igloo, a shelter built from blocks of compact snow and used by the Inuit people, among others. The Himba people of Namibia construct "desert igloos" of wattle and daub for use as temporary shelters at seasonal cattle camps, and as permanent homes by the poor. Extraordinarily thin domes of sun-baked clay 20 feet in diameter, 30 feet high, and nearly parabolic in curve, are known from Cameroon.
 Link Information: The Efé are a group of part-time hunter-gatherer people living in the Ituri Rainforest of the Democratic Republic of Congo. Question: What modern day country did the Efe people populate?
Answer: Democratic Republic of Congo

Passage: Ireland has been neutral in international relations since the 1930s. The nature of Irish neutrality has varied over time, and has been contested since the 1970s. Historically, the state was a "non-belligerent" in the Second World War (see Irish neutrality during World War II) and has never joined NATO, although during the Cold War it was anti-communist and aloof from the Non-Aligned Movement. The compatibility of neutrality with Ireland's membership of the European Union has been a point of debate in EU treaty referendum campaigns since the 1990s. The Seville Declarations on the Treaty of Nice acknowledge Ireland's "traditional policy of military neutrality", reflecting the narrow formulation of successive Irish governments. Others define Irish neutrality more broadly, as having "a strong normative focus, with a commitment to development, United Nations peacekeeping, human rights and disarmament".
 Link Information: none Question: What countries signed the treaty that acknowledges Ireland's "traditional policy of military neutrality"?

Answer: none