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: Which player played more games, Al Spalding or Ross Barnes? Passage:The Cincinnati Red Stockings, established in 1869 as the first openly all-professional baseball team, voted to dissolve after the 1870 season. Player-manager Harry Wright, with brother George and two other Cincinnati players, then went to Boston, Massachusetts at the invitation of Boston Red Stockings founder Ivers Whitney Adams to form the nucleus of the Boston Red Stockings, a charter member of the National Association of Professional Base Ball Players (NAPBBP). The original Boston Red Stockings team and its successors can lay claim to being the oldest continuously playing team in American professional sports. (The only other team that has been organized as long, the Chicago Cubs, did not play for the two years following the Great Chicago Fire of 1871.) Two young players hired away from the Forest City club of Rockford, Illinois, turned out to be the biggest stars during the NAPBBP years: pitcher Al Spalding (founder of Spalding sporting goods) and second baseman Ross Barnes.

Example Output: a

Example Input: Question: In what city is the university located from which Marjorie Grene gave another account of the philosophy of biology? Passage:While the overwhelming majority of English-speaking scholars operating under the banner of "philosophy of biology" work within the Anglo-American tradition of analytical philosophy, there is a stream of philosophic work in continental philosophy which seeks to deal with issues deriving from biological science. The communication difficulties involved between these two traditions are well known, not helped by differences in language. Gerhard Vollmer is often thought of as a bridge but, despite his education and residence in Germany, he largely works in the Anglo-American tradition, particularly pragmatism, and is famous for his development of Konrad Lorenz's and Willard Van Orman Quine's idea of evolutionary epistemology. On the other hand, one scholar who has attempted to give a more continental account of the philosophy of biology is Hans Jonas. His "The Phenomenon of Life" (New York, 1966) sets out boldly to offer an "existential interpretation of biological facts", starting with the organism's response to stimulus and ending with man confronting the Universe, and drawing upon a detailed reading of phenomenology. This is unlikely to have much influence on mainstream philosophy of biology, but indicates, as does Vollmer's work, the current powerful influence of biological thought on philosophy. Another account is given by the late Virginia Tech philosopher Marjorie Grene.

Example Output: b

Example Input: Question: Is the railroad company that backed the creation of the Beech Creek line still operational? Passage:The company was originally chartered as the Susquehanna and South Western Railroad on August 12, 1882. That company's charter called for a line from Williamsport, Pennsylvania to the southern line of Clearfield County. The proposed line was initiated with the backing of the New York Central Railroad, as part of a far-reaching strategy to ensure access to bituminous coal reserves. The New York Central did not itself extend into the bituminous coalfields, making it vulnerable to action both by the coal operators who mined the coal and rivals like the Pennsylvania Railroad, who carried it. The coal operators of Tioga County, Pennsylvania, some of whom already shipped over the New York Central via the Fall Brook Coal Company's railroad system, faced irrepressible labor troubles and the impending exhaustion of their mines. William H. Vanderbilt, president of the New York Central, responded to the challenge by developing a plan to enter the Clearfield Coalfield, hitherto the exclusive preserve of the Pennsylvania Railroad. The Vanderbilts would provide capital to a syndicate of Tioga coal operators and businessmen of the Clearfield area, incorporated as the Clearfield Bituminous Coal Company, who could acquire coal lands without arousing suspicion. The Fall Brook's rail network, extended down Pine Creek by a paper railroad called the Jersey Shore, Pine Creek and Buffalo Railway, would bring the New York Central's trains to Jersey Shore, on the West Branch Susquehanna River to the west of Williamsport. From there, the Susquehanna and South Western would head west by way of Beech Creek and Moshannon Creek to the vicinity of Clearfield.

Example Output:
b