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.

Input: Consider Input: Question: How many years did Justin's father's party have power before being defeated in the 1979 election? Passage:Trudeau lived at 24 Sussex Drive, Ottawa, the official residence of Canada's prime minister, from his birth until his father's government was defeated in the federal election on May 22, 1979. The Trudeaus were expected to move into the residence of the Leader of the Official Opposition, Stornoway, at 541 Acacia Avenue in Rockcliffe Park, but because of flooding in the basement, prime minister Joe Clark offered them Harrington Lake, the prime minister's official country retreat in Gatineau Park, with the expectation they would move into Stornoway at the start of July. However, the repairs were not complete so Pierre Trudeau took a prolonged vacation with his sons to the Nova Scotia summer home of his friend, MP Don Johnston, and later sent his sons to stay with their maternal grandparents in North Vancouver for the rest of the summer while he slept at his friend's Ottawa apartment. Justin and his brothers returned to Ottawa for the start of the school year, but lived only on the top floor of Stornoway while repairs continued on the bottom floor. His mother purchased and moved into a new home nearby at 95 Queen Victoria Avenue in Ottawa's New Edinburgh in September 1979. The Trudeaus returned to the prime minister's official residence in February 1980 after the election that returned his father to the Prime Minister's Office.


Output: b


Input: Consider Input: Question: What age was Hans Asperger when he invented the term Autistic psychopathy? Passage:Michael Fitzgerald, a professor of child and adolescent psychiatry, published a cornucopia of pathographies of outstanding historical personalities, mostly stating that they had Asperger syndrome, which is on the autism spectrum. In his 2004 published anthology Autism and creativity, he classified Hitler as an "autistic psychopath". Autistic psychopathy is a term that the Austrian physician Hans Asperger had coined in 1944 in order to label the clinical picture that was later named after him: Asperger syndrome, which has nothing to do with psychopathy in the sense of an antisocial personality disorder. Fitzgerald appraised many of Hitler's publicly known traits as autistic, particularly his various obsessions, his lifeless gaze, his social awkwardness, his lack of personal friendships, and his tendency toward monologue-like speeches, which, according to Fitzgerald, resulted from an inability to have real conversations.


Output: b


Input: Consider Input: Question: Was the failed penalty against Valencia a miss or a save? Passage:Arsenal had a better European record, compared to Galatasaray going into the match; they defeated Anderlecht with a 4–3 aggregate winning result, in the final of the 1969–70 Inter-Cities Fairs Cup. The London–based club reached the Cup Winners' Cup finales three times, in 1980, where they suffered a 4–5 defeat in a penalty shoot-out to Valencia, following a 0–0 stalemate; Arsenal also reached the 1994 final, winning 1–0 over Parma, and the following edition, losing 1–2 at the hands of Real Zaragoza. Their 1994 success led to them qualifying for that year's European Super Cup, where they were beaten 2–0 by Milan on aggregate in two games. This was Arsenal's first UEFA Cup (sixth in total) European final. The club were considered favorites to win the match.



Output: a