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.

Ex Input:
Question: Which Major General served longer in the military, Wade Haislip or John Coulter? Passage:On 15 May 1942, five months after the United States entered World War II, the 85th Infantry Division was ordered into active military service at Camp Shelby, Mississippi, under the command of Major General Wade H. Haislip. Divisions in the U.S. Army at that time were "triangularized" with three combat regiments instead of the four regiment structure "square division" used during World War I. The 340th Infantry Regiment was redesignated as the 410th Quartermaster Battalion and left the division. Basic infantry training was begun in June 1942 at Camp Shelby, Mississippi. In April 1943, it participated in large-scale army training in the Louisiana Maneuvers near Leesville, Louisiana. In August, the division was moved to Camp Coxcomb, California for desert warfare training. In October, the division was transferred to Fort Dix, New Jersey, for final preparations before shipment overseas. Major General John B. Coulter was transferred as commander and retained this position throughout the war. The Assistant Division Commander (ADC) throughout the war was Brigadier General Lee S. Gerow.

Ex Output:
a

Ex Input:
Question: Which national team that withdrew on a short notice after the home nations refused to participate was established first? Passage:After the All Blacks tour, amid a time where prominent California colleges and universities were transitioning back to playing American football from rugby union, no further matches were held. However, after organizing a team for a successful tour of British Columbia in early 1920, the California Rugby Union successfully petitioned the United States Olympic Committee (USOC) to enter a team at the 1920 Summer Olympics in Antwerp, Belgium. The USOC declined to provide any funding for this team; in June 1920, the Amateur Athletic Union agreed to pay for the team's expenses. After each of the home nations declined to send a team to the Games on account of scheduling conflicts with their domestic competitions, and the teams from Romania and Czechoslovakia withdrew from the Games on short notice, the Olympic rugby union competition was reduced to a single match between the United States and France. After a scoreless first half, the United States won this match by a score of 80. Following the Olympics, the French Rugby Union invited the American team to tour France. Sixteen members of the team that competed in the Olympics traveled to France and played three uncapped matches against regional opposition from the southeast, south, and southwest of France; each resulted in a victory for the Americans. A final match against the French national team was held on October 10, 1920 in Paris, resulting in a 145 defeat for the Americans. Upon returning to the United States, the team was disbanded. Charles Tilden served as team captain during the 1920 Olympics and the tour of France that followed. Daniel Carroll, veteran of the 1913 team, served as player-coach in 1920; he was inducted into the World Rugby Hall of Fame in 2016.

Ex Output:
a

Ex Input:
Question: What city is the university in that he was a visiting assistant professor at? Passage:Morrey graduated from Ohio State University with a B.A. in 1927 and a M.A. in 1928, and then studied at Harvard University under the supervision of George Birkhoff, obtaining a Ph.D. in 1931 with a thesis entitled Invariant functions of Conservative Surface Transformations. After being awarded his Ph.D, he was a National Research Council Fellow at Princeton, at the Rice Institute and finally at the University of Chicago. He became a professor of mathematics at UC Berkeley in 1933, hired by Griffith Conrad Evans, and was a faculty member until his retirement in 1973. In Berkeley, he was early given several administrative duties, for example being the Chairman of the Department of Mathematics during the period 19491954, and being the Acting Chairman, the Vice Chairman and the Director of the Institute of Pure and Applied Mathematics at various times. During the years 19371938 and 19541955 he was a member of the Institute for Advanced Studies: he was also Visiting Assistant Professor at Northwestern University, Visiting Professor at the University of Chicago and Miller Research Professor at Berkeley. During World War II he was employed as a mathematician at the U.S. Ballistic Research Laboratory in Maryland.

Ex Output:
b