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.

[Q]: 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.

[A]: b

[Q]: Question: How long did it take to construct the Ekaterinburg (K-84)? Passage:Construction of the nuclear submarine Ekaterinburg (K-84) began at the Northern Machinebuilding Enterprise (Sevmash) in Severodvinsk on 17 February 1982, before being commissioned into the Soviet Navy on 30 December 1985. She was the second of the seven-boat Project 667BDRM Delfin class, which was developed at the Rubin Design Bureau in September 1975. A ballistic missile submarine, she was designed primarily to carry up to 16 R-29RM Shtil (NATO designation: SS-N-23 Skiff) SLBM for use against military and industrial facilities in the case of a nuclear war. Each Shtil missile carries ten 100kt multiple independently targeted reentry vehicles, and has a circular error probable of . She is also equipped with RPK-7 Veter (NATO designation: SS-N-16 Stallion) anti-ship missiles for use against large surface vessels, and self-defense torpedoes.

[A]: b

[Q]: Question: What was the wind speed from the storm as recorded by vessel? Passage:In early August, an extratropical trough moved off the coast of South Carolina and Georgia, with a stationary front extending from it. A weak low-pressure area began to develop at the southern end of the front just offshore of Jacksonville, Florida. Initially, the storm had an open center of circulation and remained a frontal low as it moved southwestward across Florida, and thus was not considered a fully tropical system at the time. Upon entering the Gulf of Mexico, however, observations indicated that the disturbance developed a closed center of circulation. As a result, the storm was analyzed to have developed into a tropical depression off the western coast of Florida at 1200UTC on August3. At the time, weather reports revealed a definite cyclonic rotation, though the depression had a shallow minimum barometric pressure of 1012.5mbar (hPa; 29.90inHg). Moving west-southwest, the depression steadily intensified and attained tropical storm intensity at 0000UTC on August4. Late that evening, the tropical storm executed a slight northward curve. Strengthening continued into the following day, and ships in the storm's vicinity began to report a much stronger storm than was previously suggested. A ship reported the first gale-force winds associated with the storm at 2100UTC on August4. The S.S. Connecticut observed force11 winds, the strongest wind measurement associated with the storm as recorded by vessel. A minimum pressure of 995mbar (hPa; 29.39inHg) was analyzed for the system at 0600UTC on August5 based on an observation from a nearby ship.

[A]:
b