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.

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.

b

Question: How long did the battle where George was appointed colonel for last? Passage:Randall enlisted as a private in the 4th Pennsylvania Volunteer Infantry in the April 1861. He then accepted appointment to the 4th U.S. Infantry as second lieutenant in October. He served in New York and Washington, D.C., and in the field with the Army of the Potomac. He was a second lieutenant at the Siege of Yorktown, Battle of Gaines' Mill, Battle of Malvern Hill, Second Bull Run (where he commanded Company C), and Fredericksburg; and a first lieutenant at the Battle of the Wilderness. He was appointed a brevet captain for gallant service in the Battle of Antietam. He served as a major in the 14th New York Heavy Artillery Regiment, part of Major General Ambrose Burnside's IX Corps on the Richmond-Petersburg Front in 1864, and was commander of the regiment at the Battle of the Crater. The Dansville Advertiser reported on 7 September that he assumed command of the regiment on 18 August. This article also reports that he was wounded in the battle on 19 August. He was appointed a brevet lieutenant colonel, and then colonel for gallantry in the Battle of Fort Stedman. He mustered out of the Volunteer service on 26 August, and was appointed captain in the 4th US Infantry on 23 September 1865. Subsequently, he served at Davids' Island Military Reservation, New York Harbor, where he was in December 1867.

b

Question: How many active aircraft does the military force that Clayton shot his first film while in service of the film unit? Passage:While in service with the Royal Air Force film unit during World War II, Clayton shot his first film, the documentary Naples is a Battlefield (1944), representing the problems in the reconstruction of Naples, the first great city liberated in World War II, ruined after Allied bombing and destruction caused by the retreating Nazis. After the war, he was second-unit director on Gordon Parry's Bond Street (1948) and production manager on Korda's An Ideal Husband (1947). Clayton married actress Christine Norden in 1947, but they divorced in 1953. In the early 1950s, Clayton became an associate producer, working on several of the John and James Woolf's Romulus Films productions, including Moulin Rouge (1952) and Beat the Devil (1953), both directed by John Huston. It was during the making of Moulin Rouge that Clayton met his second wife, French actress Katherine Kath (born Lilly Faess), who portrayed legendary can-can dancer "La Goulue" in the film; they married in 1953, following Clayton's divorce from Norden, but the marriage was short-lived. It was also during this period that Clayton first met rising British star Laurence Harvey, with whom he worked on both The Good Die Young (1954) and I Am a Camera (1955).
a