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.

Input: Consider 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 1949–1954, 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 1937–1938 and 1954–1955 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.


Output: b


Input: Consider Input: Question: How much money did Akira Kurosawa's 1961 film make? Passage:While the first game imitated popular Spaghetti Western film soundtracks, the second game aimed to become more unique. Jackson estimated that he changed the music about four times throughout development, from extreme experimentation to classic Western sounds, ultimately blending to make "something different". Pavlovich felt that in order to find an effective result, they had to "push it almost until you break it, and then you swing back". To avoid imitating the bell used in Spaghetti Western soundtracks, Jackson instead used a mandolin used by the Wrecking Crew. The music team found reference points in Willie Nelson's album Teatro (1998) and the soundtrack for the 1971 film The Hired Hand. Session guitarist Matt Sweeney took inspiration from segments of other music—such as the insistent drums in the work of Ennio Morricone—without being derivative. While researching for the game's score, Jackson found that Morricone's work—particularly on Sergio Leone's Dollars Trilogy—was already a departure from typical Western music of the time, instead featuring sounds popular at the time such as "psychedelic guitars, lots of noises", so Jackson felt that he could also take such creative liberties with Red Dead Redemption 2. Similarly, he was even more influenced by Masaru Sato's score on Akira Kurosawa's film Yojimbo (1961), which he felt focused on emotion rather than trying to replicate the sound of feudal Japan, the film's setting.


Output: b


Input: Consider Input: Question: Who took control due to the revolt? Passage:When the Bolsheviks revolted, the yeshiva was forced to flee from Lithuania to Kletsk, Poland. During his three years in Kletsk, Yechiel Michel attended the famed Talmudic lectures of Rabbi Meltzer and his son-in-law, Rabbi Aharon Kotler. Then he transferred to the Mir yeshiva, where he became a leading student of Rabbi Yeruchom Lebovitz and learned together with Rabbi Yechiel Michel Schlesinger, future rosh yeshiva of Yeshivas Kol Torah in Jerusalem, and Rabbi Yonah Karpilow of Minsk, who was killed in the Holocaust and whose Yonas Eilem was published posthumously. At this time, Rabbi Chaim Shmuelevitz and Rabbi Aryeh Leib Malin also studied in the Mir yeshiva. Despite being surrounding by such luminaries in Torah, R' Yechiel Michel was nonetheless thought of as "the genius of the yeshiva".



Output: b