In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.

Example Input: Question: Which of the two cities where McCartney was scheduled to headline has more residents? Passage:On 15 February 2016, McCartney announced two initial festival dates in Europe for the upcoming summer. These two headlining performances at Pinkpop Festival in Landgraaf, Netherlands and Rock Werchter in Werchter, Belgium were revealed before the initial revelation of the "One on One" tour. These tours would feature mostly similar elements of the "One on One" performances yet with a condensed set list to allot for festival curfew limits and less stage elements given restrictions. In the wake of the passing of notable Beatles and McCartney producer George Martin, McCartney announced the initial "One on One" dates for North America and Europe. In North America, McCartney's visit to Fresno, California would mark his first performance in the city, and his performances in North Little Rock and Sioux Falls would be his first performances in the states of Arkansas and South Dakota respectively. Elsewhere in North America, McCartney would perform in Portland after an eleven-year absence following his 2005 'US' tour. The two shows in Vancouver would follow his previous performance in the city at the BC Place stadium in 2012, yet this tour would feature two shows in the neighboring Rogers Arena after the pyrotechnics during his concert at BC Place accidentally damaged the stadium's new roof. McCartney's Seattle show would mark his shortest absence from any North American city on the tour announced currently, as he performed at the city's Safeco Field during the inaugural year of the 'Out There' tour. McCartney announced a performance on 16 March in Minneapolis at the Target Center. This show would take place on 4 May 2016, less than two years after McCartney's last performance in the city at the adjacent baseball stadium sharing a corporate sponsor with the arena, Target Field. Due to high demand of tickets a second show in Minneapolis was announced the next day and would take place on 5 May.

Example Output: a

Example Input: Question: When was the organization where Ingold was made an officer in 1995 founded? Passage:He was born to Sir Christopher Ingold and Dr. Hilda Usherwood, and studied for a BSc in Chemistry at the University of London, completing his degree in 1949. He continued his higher education with a PhD in chemistry at Oxford University, which he completed in 1951. Soon after graduation he moved to Canada to begin work with the National Research Council, followed by two years of post-doctoral research at the University of British Columbia. He returned to work for the NRC in 1955 as a research officer, followed by a promotion to head of the Free Radical Chemistry Section. He was awarded the 1968 Petroleum Chemistry Award, the 1988 Linus Pauling Award, and both the Davy Medal and Royal Medal of the Royal Society, the latter for "elucidating the mechanism of reactions involving free radicals". In 1995 he was made an officer of the Order of Canada. He has received honorary degrees from the universities of Guelph, Mount Allison, St Andrews, Carleton, McMaster and Dalhousie.

Example Output: b

Example Input: Question: Which is the oldest country that O'Donnell served as the Resident Coordinator of the United Nations system for? Passage:Francis Martin O'Donnell, GCMM, GCEG, KC*SG, KM, KCHS, KCMCO, (born in 1954), an Irish citizen, has served abroad as an international diplomat in senior representative positions with the United Nations until retirement, and later with the Sovereign Military Order of Malta. He is a life member of the Institute of International and European Affairs (under the patronage of the President of Ireland). He currently continues to serve pro bono as an advisor to the Global Partnerships Forum founded by Amir Dossal, and is a listed endorser of the NGO consortium known as Nonviolent Peaceforce . He served as Ambassador Extraordinary and Plenipotentiary of the Sovereign Military Order of Malta to the Slovak Republic from December 2009 to March 2013. He previously served as a United Nations official for 32 years, most recently as the Resident Coordinator of the United Nations system in Ukraine, from 30 September 2004 until 31 March 2009, and previously in the same capacity in Serbia-Montenegro. In early 2012, he was appointed to the Council of the Order of Clans of Ireland (under the patronage of the President of Ireland), and was elected its Chancellor in May 2014 . He also served on the Board of Directors, and completed both terms of office in April 2015. Since then, he has participated in Globsec, the InterAction Council, and is a regular participant, panelist or moderator in the annual Global Baku Forum. He is also a speaker and panelist on global policy issues to seminars and forums of the Association of Schools of Political Studies of the Council of Europe, and occasional guest speaker on Irish history and genealogy in Dublin, Madrid, Vienna, and at the Sorbonne in Paris.

Example Output:
a