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.

Ex Input:
Question: How many siblings did Khalid have in total? Passage:Khalid was a member of the Shayban tribe, dominant in the region of Diyar Bakr in the northern Jazira, and third son of Yazid ibn Mazyad al-Shaybani, who served twice as Arab governor (ostikan) of Arminiya (a large province encompassing the whole of Transcaucasia). Khalid served in the same office no less than four times: in 813/814, 828–832, briefly in 841 and again under Caliph al-Wathiq (r. 842–845). In his first tenure, he showed himself conciliatory towards the native Christian population and the nakharar princes, but his second tenure was marked by the brutal suppression of several revolts by local Arab magnates, as well as the harsh treatment of the Christian population. As a result, when his re-appointment to the office was announced in 841, a rebellion broke out, forcing the Abbasid government to recall him immediately. Nevertheless, al-Wathiq assigned Arminiya to Khalid. The latter arrived in the province at the head of an army, and crushed any opposition. He died soon after at Dvin, where he was buried. He was succeeded by his son, Muhammad. His younger son Haytham ibn Khalid ruled in the family's stronghold of Shirvan, and was the first to claim the title of Shirvanshah.


Ex Output:
a


Ex Input:
Question: What character did THompkins voice in Dr. Katz, Professional Therapist? Passage:Tompkins has done voice work for many animated television series including Dr. Katz, Professional Therapist, King of the Hill, and Bob's Burgers, in which he voices the recurring character Randy. He lent his voice to a character in an unaired 2007 episode of Aqua Teen Hunger Force titled "Boston" that was supposed to be the premiere episode of the show's fifth season, but it was pulled by Turner Broadcasting System to avoid further controversy surrounding the 2007 Boston bomb scare. Tompkins later appeared in an episode during the show's 7th season. He was also the voice of one of the thugs in Walt Disney Animation Studios' 2010 computer animated film Tangled. Tompkins was the voice of Benton Criswell, a character in MTV series Super Adventure Team which featured marionettes in the style of the 1960s British series Thunderbirds; the role was credited under the stage name Francis Mt. Pleasant. He was the voice of a puppet in ads for the Ford Focus. Tompkins plays Mr. Peanutbutter in the 2014 Netflix original animated series BoJack Horseman. Tompkins voices the recurring character, Gladstone Gander, in the reboot series of DuckTales.


Ex Output:
a


Ex Input:
Question: Which of the cities that the new rail line was built after the battle of Abu Hamad was founded first? Passage:In 1895, the British government authorized Kitchener to launch a campaign to reconquer Sudan. Britain provided men and matériel while Egypt financed the expedition. The Anglo-Egyptian Nile Expeditionary Force included 25,800 men, 8,600 of whom were British. The remainder were troops belonging to Egyptian units that included six battalions recruited in southern Sudan. An armed river flotilla escorted the force, which also had artillery support. In preparation for the attack, the British established an army headquarters at the former rail head Wadi Halfa and extended and reinforced the perimeter defenses around Sawakin. In March 1896, the campaign started as the Dongola Expedition. Despite taking the time to reconstruct Ishma‘il Pasha's former gauge railway south along the east bank of the Nile, Kitchener captured the former capital of Nubia by September. The next year, the British then constructed a new rail line directly across the desert from Wadi Halfa to Abu Hamad, which they captured in the Battle of Abu Hamed on 7 August 1897. (The gauge, hastily adopted to make use of available rolling stock, meant supplies from the Egyptian network required transshipment via steamer from Asyut to Wadi Halfa. The Sudanese system retains the incompatible gauge to this day.) Anglo-Egyptian units fought a sharp action at Abu Hamad, but there was little other significant resistance until Kitchener reached Atbarah and defeated the Ansar. After this engagement, Kitchener's soldiers marched and sailed toward Omdurman, where the Khalifa made his last stand.


Ex Output:

b