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 rolling stock did the Turboliner replace? Passage:Following its takeover of most passenger rail service in the United States on May 1, 1971, Amtrak retained the Abraham Lincoln as a daily Chicago-St. Louis service, operating in tandem with the GM&O's old Limited. In November of that year Amtrak extended both the Abraham Lincoln and the Limited (now known as the Prairie State) through Chicago to Milwaukee, Wisconsin. In October 1973, Amtrak replaced the rolling stock with the new French-built Turboliner; as part of this change the trains were re-branded as Turboliners and truncated to Chicago. In February 1976 Amtrak returned conventional rolling stock to the route and revived the Abraham Lincoln name along with the Ann Rutledge. Amtrak added the State House to the Chicago-St. Louis corridor in 1977. Also in 1977, Amtrak extended the Abraham Lincoln to Kansas City and renamed it the Ann Rutledge–a name that had briefly disappeared from the timetable in 1976-77 when Amtrak extended the Inter-American to Chicago. Today service between Chicago and St. Louis is handled by the "Lincoln Service".

Example Output: b

Example Input: Question: How many square meters large was the city of Halifax the year that I Still Have A Suitcase In Berlin was translated into French? Passage:Stephens Gerard Malone is a Canadian-born novelist. Born in Trenton, Ontario, he was educated in Montréal, Quebec. He currently lives and writes on Canada's east coast city of Halifax, Nova Scotia where he's written for a variety of media, including television and periodicals. In 1994, he published his first novel Endless Bay (Mercury Press) under the pseudonym, Laura Fairburn. His second novel, Miss Elva (Random House, Canada) followed in 2005 and was short-listed for the Dartmouth Book Award. Malone's third novel I Still Have A Suitcase In Berlin (Random House, Canada) took eight years to write and was released in May 2008. The book was translated into French in 2011 under the title 5 Minutes de plus à Berlin and was published by Québec Amérique. Big Town, the author's fourth novel, is a fictionalized account of the eviction of the citizens of Africville in the late 1960s. It was published by Vagrant Press in September 2018, and reviewed in the Globe and Mail.

Example Output: b

Example Input: Question: Did Derbyshire win the matches that Walker played in during its 1883 season? Passage:Walker's debut match for Derbyshire in the 1881 season was against Yorkshire when he never had the chance to bowl and scored 2 runs in each innings. He did not play again in that season nor in the 1882 season, and only played in two games in the 1883 season. In the 1884 and 1885 season, when William Cropper lead the bowling, he played more frequently and in 1885 took 7–105 against Nottinghamshire in one match and 5–87 in the other. In 1886 Walker was selected for two Gentlemen of England teams, in one of which against Australia he was in the team with his hero W.G. Grace. For the county he took 6–26 against Marylebone Cricket Club (MCC), and 7–38 and 5–75 in the same match against Surrey. In the 1887 season Walker took 5–54 for Derbyshire against Lancashire and 5–49 against Surrey. He continued playing regularly for the Derbyshire club between 1888 and 1893 when it was without first-class status. In 1894 took 7–108 for Gentlemen against Players with W. G. Grace in the side again although he never had the opportunity to bowl against him in any of his first-class games. He also took 5–24 for Derbyshire against Lancashire. In the 1896 season he took 9–85 against Leicestershire although his average was deteriorating. He played four games in the 1897 season and six in the 1898 season by which time his bowling made little impression, while Billy Bestwick was beginning to star.

Example Output:
a