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 did Mathews work in for Wrestlemania XXVII? Passage:In late 2010, Mathews often worked as the color commentator on Raw due to Jerry Lawler's increased in-ring competition. On April 3, 2011, Mathews commentated the majority of WrestleMania XXVII, though he received a 'Stone Cold Stunner' from an angered Stone Cold Steve Austin, cutting his night short. The following night on Raw, Mathews found himself aligned with Jerry Lawler, and against Michael Cole. He then became the alternate spokesman for the Anonymous Raw General Manager, when Michael Cole was not commentating. He then using the new catchphrase "The Anonymous Raw General Manager says...", before reading each e-mail. On the April 25 episode of Raw, Mathews announced that the Jim Ross and Jerry Lawler vs. Michael Cole and Jack Swagger match at Extreme Rules will be a Country Whipping match, which Cole and Swagger won. At the following pay-per-view, Over the Limit, Mathews supported Lawler, Bret Hart and Eve Torres in having Michael Cole kiss Lawler's foot. The following night, again as the spokesman for the anonymous Raw General Manager, Mathews read the e-mail that denied The Miz's request for another title shot, seemingly done with John Cena. He left the Raw broadcasting table the following week, after Cole and Lawler reconciled, though he remained on the show as a backstage interviewer and backup commentator.

Example Output: b

Example Input: Question: How long was Bill Hewitt the director? Passage:The Billy Bishop Regional Airport in the nearby Municipality of Meaford was named after him. His modest gravesite can be visited in the city's Greenwood Cemetery by those willing to take the time to locate the stone. His boyhood home is now a museum dedicated to his life and to Canada's aviation history. The town was also the home of National Hockey League (NHL) Hall of Fame goaltender Harry Lumley and the artist Tom Thomson (buried in the nearby village of Leith). Surgeon Norman Bethune, an avowed communist and pioneer of public medicine who gained notoriety in his innovative medical work with the Chinese army during the Second Sino-Japanese War, is an alumnus of the Owen Sound Collegiate and Vocational Institute. Legendary hockey broadcaster Bill Hewitt was once sports director of the local AM radio station, CFOS. Thomas William Holmes, another Victoria Cross winner, was also from Owen Sound, and the city's armoury bears his name.

Example Output: a

Example Input: Question: What country was Alan Brown born in? Passage:Brown was born in 1937 in Lewes, Sussex, one of six brothers who all played football; two, Irvin and Stan, also played in the Football League. He played local football for Lewes St Mary's and Portslade before being called up for National Service. A tall, heavily built man, Brown was serving in Gibraltar in March 1958 when he was recommended to Brighton & Hove Albion as a promising centre half; he signed for the club six months later, the day after his brother Irvin, also a centre half, left it. He made his first-team debut three years later, by which time he had converted to play at centre forward, and made eight appearances, scoring twice, in the first half of the 1961–62 Second Division season. In January 1962, he joined Exeter City, managed by former Brighton team-mate Glen Wilson. He scored three goals from eleven Division Four appearances, and left at the end of the season for non-league football with clubs including Hastings United and Dover. After football, Brown worked as a landscape gardener. He died in Lewes in 2016 at the age of 78.

Example Output:
b