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: Did Henry VIII or Elizabeth I live longer? Passage:Greenwich is notable for its maritime history and for giving its name to the Greenwich Meridian (0° longitude) and Greenwich Mean Time. The town became the site of a royal palace, the Palace of Placentia from the 15th century, and was the birthplace of many Tudors, including Henry VIII and Elizabeth I. The palace fell into disrepair during the English Civil War and was demolished to be replaced by the Royal Naval Hospital for Sailors, designed by Sir Christopher Wren and his assistant Nicholas Hawksmoor. These buildings became the Royal Naval College in 1873, and they remained a military education establishment until 1998 when they passed into the hands of the Greenwich Foundation. The historic rooms within these buildings remain open to the public; other buildings are used by University of Greenwich and Trinity Laban Conservatoire of Music and Dance.

Example Output: a

Example 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.

Example Output: b

Example Input: Question: Who were the original members of the band who sang "God Save the Queen"? Passage:Joss Whedon and Brian K. Vaughan collaborated in breaking down the story, before Vaughan penned the four-part story individually. Vaughan had previously pitched the broad strokes of the story at a dinner with Whedon, Tim Minear and Drew Goddard as a direct-to-DVD Faith movie. There were some presumptions that Vaughan would have difficulty writing the characters' dialogue, given that he wasn't a member of the TV series' writing staff. Despite so, Vaughan proved otherwise. Whedon himself was compelled to tell Vaughan what great lines he had written to Faith specifically. His writing, like the series', featured numerous pop-culture references. The title itself refers to a verse from the song "God Save the Queen" by the Sex Pistols. Other rock song lyrics are mentioned by characters as well: Faith tells Giles she's "the go-to girl for dirty deeds done dirt cheap," whereas Roden paraphrases Pink Floyd's song "Another Brick in the Wall" with the phrase "as a wise man once said, you can't have any pudding if you don't eat your meat." Giles, sporting a jumper with a Yellow Submarine design, refers to "the great bearded wizard of Northampton": a nod to legendary comic book writer and magician Alan Moore. Buffy refers to Lady Genevieve and her accomplices as Faith's 'droogs', a term used in Anthony Burgess' A Clockwork Orange to define friend or associate. Finally, whilst training, Xander makes reference to Snake Plissken, the eye-patch wearing anti-hero of Escape from New York.

Example Output:
b