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'.
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Question: Passage: To promote I Am... Sasha Fierce, Beyonce embarked on the I Am... World Tour with several performances. The tour kicked off in Edmonton, Alberta, Canada on March 26, 2009, in support of the album. The European leg of the tour started on April 26, 2009, in Zagreb, Croatia and ended on June 9, 2009, in London, England. On June 21, 2009, she began the third leg of the tour in the United States and finished in August with a four-day stint at Encore Las Vegas on the Las Vegas Strip. Starting on September 15, 2009, the fourth leg began in Melbourne, Australia and finished on September 24 in Perth, Australia. Beyonce then went on performing in Asia, the Middle East, Europe, Africa, and the United Kingdom, before finishing the 2009 portion of the tour on November 24 in Belfast, Northern Ireland. The tour had its final leg in 2010, visiting Latin America. Starting on February 4, 2010, in Florianopolis, Brazil, she visited five other places before ending in Trinidad on February 18, 2010. According to Pollstar, the tour earned $17.2 million between January 1, and June 30, 2010, which added onto her total of $86 million for her first ninety-three concerts in 2009, bringing the tour total to $103.2 million for the ninety-seven shows.
Link Information: The European leg of the tour started on April 26, 2009, in Zagreb, Croatia and ended on June 9, 2009, in London, England. Question: Is the city that hosted the first leg on the European leg of Beyonce's 2009 tour smaller or larger than the city that hosted the final stop on that tour?

Answer: Answer: London

Question: 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?

Answer: Answer: none

Question: Passage: While attending the University of Iowa, Whitaker played tight end for the University of Iowa Hawkeyes football team, under coach Hayden Fry, appearing in the starting lineup for Iowa's Rose Bowl game in 1991. In 2002, Whitaker was the candidate of the Republican Party for Treasurer of Iowa. From 2004 to 2009, he served as the United States Attorney for the Southern District of Iowa, where he was known for aggressively prosecuting drug traffickers. Whitaker ran in the 2014 Iowa Republican primary for the United States Senate. He later wrote opinion pieces and appeared on talk-radio shows and cable news as the executive director of the Foundation for Accountability and Civic Trust (FACT), a conservative advocacy group.
Link Information: none Question: How many students graduated from the University of Iowa the year Whitaker ran for Treasurer of Iowa?

Answer:
Answer: none