TASK DEFINITION: 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'.
PROBLEM: Passage: The 19th annual Arab League summit reaffirmed the Arab Peace Initiative first adopted in 2002 (also known as the Beirut Declaration). Arab leaders at the summit urged Israel to accept this initiative. Saudi Foreign Minister Prince Saud al-Faisal said that the plan would have a strong chance of winning international support and of reviving IsraeliArab peace talks if adopted unanimously by all Arab leaders. The plan, moreover, set up a mechanism to promote the peace plan that would pave the way for Arab countries with no ties to Israel, including Saudi Arabia, to open channels of communications with the Jewish statea longtime goal for various presidential administrations in the United States. The peace initiative, as Middle Eastern scholars explain, was considered a "great leap from historical resolutions of 1964 and 1967, which had vowed to destroy Israel." Under the plan, Arab nations would recognize Israel if Israel withdrew from land it occupied in the 1967 Arab-Israeli war. Moreover, the plan allows for the creation of a Palestinian statewith its capital in East Jerusalemand the return of Palestinian refugees based on United Nations General Assembly Resolution 194. The final draft of the plan, moreover, avoided mentioning the phrase "right of return", which has been a point of contention in all previous peace talks; instead it called for a "just solution to the Palestinian refugee problem."
Link Information: Under the plan, Arab nations would recognize Israel if Israel withdrew from land it occupied in the 1967 Arab-Israeli war. Question: How long did the Arab-Israeli War last?

SOLUTION: Answer: 6

PROBLEM: Passage: He completed his training as a psychiatrist at the Maudsley Hospital, London and was awarded a Medical Research Council Fellowship to study genetics at the University of London and at Washington University in St Louis, Missouri where he spent a formative 18 months under the mentorship of Theodore (Ted) Reich and Irving I Gottesman. He completed a PhD with a thesis describing one of the first multi marker genetic linkage studies in schizophrenia. He subsequently became an MRC Senior Clinical Fellow at the Maudsley and the Institute of Psychiatry (now part of King's College London) and then took up the Chair of Psychological Medicine at the University of Wales College of Medicine in Cardiff in 1987. He subsequently established the Cardiff department as one of the World's leading centres for psychiatric genetic research and was among the early pioneers of multi-centre international collaborations in psychiatric genetics such as the European Science Foundation programme on the Molecular Neurobiology of Mental Illness. He moved back to London as successor to Prof Sir Michael Rutter as Director of the MRC Social, Genetic and Developmental Psychiatry Centre at the Institute of Psychiatry in October 1998. From January 2007 to December 2009, he was the Dean of the Institute of Psychiatry. He was elected a founder Fellow of the Academy of Medical Sciences in 1998. Despite his very early Freudian leanings, McGuffin's research, his books and papers have been mainly on the genetics of normal and abnormal behaviour.
Link Information: none Question: Which of the universities that McGuffin was awarded a Medical Research Council Fellowship at has the highest enrollment?

SOLUTION: Answer: none

PROBLEM: Passage: Indigenous peoples inhabited Missouri for thousands of years before European exploration and settlement. Archaeological excavations along the rivers have shown continuous habitation for more than 7,000 years. Beginning before 1000 CE, there arose the complex Mississippian culture, whose people created regional political centers at present-day St. Louis and across the Mississippi River at Cahokia, near present-day Collinsville, Illinois. Their large cities included thousands of individual residences, but they are known for their surviving massive earthwork mounds, built for religious, political and social reasons, in platform, ridgetop and conical shapes. Cahokia was the center of a regional trading network that reached from the Great Lakes to the Gulf of Mexico. The civilization declined by 1400 CE, and most descendants left the area long before the arrival of Europeans. St. Louis was at one time known as Mound City by the European Americans, because of the numerous surviving prehistoric mounds, since lost to urban development. The Mississippian culture left mounds throughout the middle Mississippi and Ohio river valleys, extending into the southeast as well as the upper river.
Link Information: earthworks are artificial changes in land level, typically made from piles of artificially placed or sculpted rocks and soil. Question: What are earthwork mounds made of?

SOLUTION:
Answer: sculpted rocks and soil.