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 years did the person who possibly encouraged Eumenes to revolt reign? Passage:Although nominally under Seleucid control, Pergamon under Philetaerus enjoyed considerable autonomy. However, upon his succession, Eumenes, perhaps with the encouragement of Ptolemy II, who was at war with the Seleucids, revolted, defeating the Seleucid king Antiochus I near the Lydian capital of Sardis in 261 BC. He was thus able to free Pergamon, and greatly increase the territories under his control. In his new possessions, he established garrison posts in the north at the foot of Mount Ida called Philetaireia after his adoptive father, and in the east, northeast of Thyatira near the sources of the river Lycus, called Attaleia after his grandfather, and he extended his control south of the river Caicus to the Gulf of Cyme as well. Demonstrating his independence, he began to strike coins with the portrait of Philetaerus, while his predecessor had still depicted Seleucus I Nicator.

Example Output: b

Example Input: Question: Did the Earl of Kintore have any children when Anstruther-Gray became his Aide-de-Camp? Passage:He joined the Militia's Fife Artillery as a Sub-Lieutenant (Supernumerary) on 16 December 1876. He served for four years until he joined the 13th Hussars as a second lieutenant in 1880, served in India and Afghanistan in 1880-1881 and was promoted to lieutenant on 1 July 1881, before transferring to the Royal Horse Guards in 1885. He was Aide-de-Camp to the Earl of Kintore, Governor of South Australia, from 1889-1891, was promoted to captain on 30 December 1893, and to major on 1 May 1897. He served in South Africa from 1901-1902 where he was commandant of the district of Knysna in 1901, and Inspector of Concentration Camps in Transvaal in 1902. Following the end of the war in June 1902, he returned to the United Kingdom in the SS Dunottar Castle, which arrived at Southampton in July 1902. He later commanded 3rd Line Group, Scottish Horse during World War I.

Example Output: b

Example Input: Question: What is the age difference between the man De Boer replaced in February of 1972 and the man who replaced De Boer during his medical leave of absense? Passage:De Boer became a Member of the House of Representatives after resignation of Joop Bakker, taking office on 16 February 1972 serving as a frontbencher chairing the and the and spokesperson for Small business, Civil Service, Fisheries, Culture, Media and Military Personnel. De Boer also Chairman of the Anti-Revolutionary Party from 13 December 1975 until 27 September 1980. After the election of 1977 the Christian Democratic Appeal and the People's Party for Freedom and Democracy (VVD) formed the Cabinet Van Agt-Wiegel, De Boer and several Christian Democratic Appeal Members of the House of Representatives were critical on the coalition agreement and formed a informal caucus in there own parliamentary group called the that supported the cabinet only with confidence and supply. After the election of 1981 De Boer was appointed as State Secretary for Culture, Recreation and Social Work the Cabinet Van Agt II, taking office on 11 September 1981. The Cabinet Van Agt II fell just seven months into its term on 12 May 1982 after months of tensions in the coalition and continued to serve in a demissionary until the first cabinet formation of 1982 when it was replaced by the caretaker Cabinet Van Agt III with De Boer appointed as Minister of Culture, Recreation and Social Work, taking office on 29 May 1982. After the election of 1982 De Boer returned as a Member of the House of Representatives, taking office on 16 September 1982. De Boer took a medical leave of absence on 11 October 1982 after which Minister of Health and Environment Til Gardeniers-Berendsen served as acting Minister of Culture, Recreation and Social Work. Following the second cabinet formation of 1982 De Boer was not giving a cabinet post in the new cabinet, the Cabinet Van Agt III was replaced by the Cabinet Lubbers I on 4 November 1982 and he continued to serve in the House of Representatives as a frontbencher and spokesperson for Welfare, Sport, Social Work and Culture.

Example Output:
b