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: How many churches did Bernardino's teacher paint for? Passage:He was born in Mortara near Pavia. He trained as a pupil of the painter Gaudenzio Ferrari. In Milan, he painted a Last Supper for the church San Nazaro Grande. He painted a Holy family for the church of Sant'Ambrogio, now on display in the Brera Gallery. He painted frescoes on the Life of the Magdalen for the church of San Cristoforo in Vercelli. Three of his works are on display at the Museo Borgogna in Vercelli, including: an Annunciation; a Madonna and Child with Saints Bernardino of Siena and St Francis of Assisi (also labeled Madonna del cane due to dog asleep below Virgin); and a painted standard of Madonna and Child with St Anne and hooded confraternity brothers, painted for the Confraternita di Sant’Anna. Lanini painted a St Catherine for the church San Celso. He frescoed sibyls for the Novara Cathedral. He also painted for a chapel in the Basilica of San Magno, Legnano. Other paintings are in Saronno.

Example Output: a

Example Input: 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.

Example Output: b

Example Input: Question: Which edition of the ACC Twenty20 Cups that Bari played in was the UAE national team placed the highest? Passage:Bari was born in Dubai. Having earlier represented his country at under-15 and under-17 level, he played for the UAE under-19s at the 2005 ACC Under-19 Cup in Nepal and the 2007 ACC Under-19 Elite Cup in Malaysia. His performance at the 2005 tournament included figures of 3/31 against Kuwait and 2/20 against Malaysia, while at the 2007 tournament he top-scored with 45 against Singapore. Bari made his senior debut for the UAE in November 2006, appearing against Nepal in an ACC Premier League match. His first-class debut came the following month, in an ICC Intercontinental Cup match against Namibia. He took a five-wicket haul, 5/130, in Namibia's only innings, but his team lost by an innings and 149 runs. Bari has since made another three Intercontinental Cup appearances, playing against Ireland in 2007 and against Kenya in 2008 and 2011. He also represented the UAE at the 2007 and 2013 ACC Twenty20 Cups.

Example Output:
b