In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Example Input: Question: What city the place in that Morrey was employed as a mathematician during World War II? 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: How many miles from Chattanooga, Tennessee does it take to travel to Lookout Mountain by railway? Passage:The Lookout Mountain Incline Railway is a inclined plane funicular railway leading to the top of Lookout Mountain from the historic St. Elmo neighborhood of Chattanooga, Tennessee. Passengers are transported from St. Elmo's Station at the base, to Point Park at the mountain summit, which overlooks the city and the Tennessee River. It is just a short drive to three of Chattanooga's main tourist attractions, Ruby Falls, Cavern Castle, and Rock City. The railway is approximately in length (single-track except for a short two-track passing loop at the midway point, allowing operation of two cars at one time). It has a maximum grade of 72.7%, making it one of the world's steepest passenger railways. It obtained Historic Mechanical Engineering Landmark status in 1991. The cable system for the cars was made by the Otis Elevator Company.

Example Output: a

Example Input: Question: How many average daily viewers did BBC Alba have the year Mill a h-Uile Rud started their European tour with Oi Polloi? Passage:In April 2005, Mill a h-Uile Rud embarked on a European tour with Oi Polloi which took in Scotland, Belgium, the Netherlands, Germany and Poland. Much of this tour was filmed by BBC Alba for a Gaelic television documentary on Mill a h-Uile Rud and Gaelic punk. They have also played in Stornoway, on the sparsely populated Isle of Lewis, the largest town in the Western Isles of Scotland. They also recorded a live session for the BBC Radio nan Gaidheal nighttime 'Rapal' program which is broadcast nationally in Scotland. In 2005, Tim moved to Scotland full-time to study sociolinguistics and language revival—he is a lecturer at Sabhal Mòr Ostaig—and as such, the band is less active, although they still play from time to time when Tim is back in the Seattle. Tim was also involved in the Gaelic techno/hip-hop act, Nad Aislingean, the Gaelic rock band, Na Gathan and in 2013 published Air Cuan Dubh Drilseach, the first Scottish Gaelic science fiction novel, published by CLÀR. The book was launched in Edinburgh with Mill a h-Uile Rud's contemporaries Oi_Polloi at an illegal street gig on Leith Walk outside Elvis Shakespeare, and later at The Cruz boat on The Shore with Comann Ceilteach Oilthigh Dhun Eideann and CLÀR. Sgrios remains quite active in the Seattle folk-punk scene and is involved in a number of bands in the city while Sìne now runs a goat cheese farm outside of Seattle and researches farming culture. Only their roadie, Erin, still lives on the remote punk commune in the mountains outside Seattle where the band was formed.

Example Output:
a

