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: Where was Schunk's conductor for his 1986 tenor solo performance born? Passage:From 1979 onwards, he worked as a freelance singer, performing internationally. He appeared at both the Hamburg State Opera and the Vienna State Opera in 1981 as the Emperor in Die Frau ohne Schatten by Richard Strauss. In 1983, he appeared as Max in Weber's Der Freischutz at the Bregenz Festival. The same year, he made his U.S. debut as Erik at the Lyric Opera of Chicago. In 1984 he took part in the Hamburg State Opera's tour of Japan. In 1986 he appeared as Florestan in Beethoven's Fidelio at the Metropolitan Opera, opposite Hildegard Behrens in the title role, returning in 1989 as Siegmund and in 1990 as the Emperor, a role which he had also performed for his 1987 debut at the Royal Opera House. In 1996, he appeared as Loge in Wagner's Das Rheingold at the Opera de Marseille. In addition to his opera activities, Schunk has also performed successfully in concerts. He recorded the tenor solo in Beethoven's Ninth Symphony in 1986, conducted by Georg Solti with the Chicago Symphony Orchestra & Chorus, alongside Jessye Norman, Reinhild Runkel and Hans Sotin.

Example Output: b

Example Input: Question: Which team did the New Orleans Saints beat in the 2006 NFC playoffs? Passage:The Buccaneers played their home opener against the 2006 NFC South champion New Orleans Saints. After scoring only 6 points the week before, the Buccaneers dominated the Saints, on offense and defense, at one point taking a 280 lead. Early in the first quarter, Barrett Ruud recovered a Deuce McAllister fumble, which set up a Tampa Bay scoring drive. Carnell Williams, who was back in the lineup after injuring his ribs the week before, capped off the drive with a one-yard touchdown run. Early in the second quarter, Joey Galloway scored on a 69-yard catch and run from quarterback Jeff Garcia. Inside the two-minute warning, Garcia and Galloway scored again, this time with a 24-yard touchdown, to take a 210 halftime lead. Halfway through the third quarter, Cato June intercepted a pass from Drew Brees. Two plays later, Garcia and Galloway connected for yet another big play, a 41-yard completion to the New Orleans 9-yard line. Williams capped off the drive with his second 1-yard touchdown. New Orleans' first score came with a 1-yard touchdown run by Mike Karney, aided by a 58-yard catch by Phillip Buchanon moments earlier. The Buccaneers improved to 11, into a tie for the NFC South lead. New Orleans fell to 02.

Example Output: b

Example Input: Question: What year did Sharif become Prime Minister? Passage:His credential and reputation eventually led him secure nomination for the presidency by Prime Minister Benazir Bhutto and elected as President in 1993. However, he began receiving criticism over the controversial appointments of Senior Justices of the Supreme Court of Pakistan and was implicated in Mehran Bank scandal. Differences began to emerge with Prime Minister Benazir Bhutto on policy issues in 1995 and he surprisingly dismissed his leader's government in 1996. His political ambitions later clashed with Prime Minister Nawaz Sharif and his intervention to retain Justice Sajjad Ali Shah as Chief Justice finally led to his resignation in 1997. He remained active in politics and joined the PML(Q) in 2004. Leghari died from a long heart illness at the Combined Military Hospital in Rawalpindi on 20 October 2010.

Example Output:
b