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 Caïcus 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 chief who predicted the massacre of Mormon towns survive the Black Hawk War? Passage:The Navajo War was not directly a part of the Black Hawk War, but it may have been a source of some of the native warriors who fought in the Black Hawk War. Black Hawk's success drew fighters from other Utes in Colorado, Apaches from New Mexico, and many Navajos. In the winter of 1866 Black Hawk and his band went to the Four Corners region where he received many new recruits. So many Navajos joined him that they formed almost half his raiders. The Navajo had been decimated by the U.S. Army under Kit Carson and forced out of their ancestral homeland. The remaining Navajos were eager for a chance to build up their herds at the expense of white settlers. Manuelito, the most important chief refusing to relocate to the Bosque Redondo Reservation, jointly led Black Hawk's raids on Mormon settlements in southern Utah during 1866. The attacks commenced at Pipe Springs, then a Mormon settlement on the Arizona-Utah border. The retaliation for the Pipe Springs raid left four unarmed Paiutes dead for murders they had nothing to do with. This brought some Paiute fighters to Black Hawk's band. Hopis hearing of the Navajo's movements feared they were to be attacked and struck first ambushing Manuelito's Navajos. The raids continued at the Paria settlements, and Kanab, who sent pleas for help against the raids. In subsequent years, the raids continued in the south by Navajos and Paiutes, which raised tensions to a fever pitch which would result in the worst massacre of the war at Circleville. Chief Kanosh predicted that in 1867 six thousand Navajos would wipe out the Mormon towns in southern Utah.

Example Output: b

Example Input: Question: How old was Aldo Clementi when Electronic and Experimental Music (LEMS) was established? Passage:Following a vote by the faculty, the pianist Ludovico Bramanti became the new Director of the conservatory in 2014, succeeding another pianist, Maurizio Tarsetti, who had held the post since 2008. In the academic year 2009/2010, the conservatory had an enrollment of approximately 850 students. Of those, 821 were Italian with the remainder from 26 other countries as far afield as Peru, Nepal and Kazakhstan. The conservatory offers bachelor and master diplomas in singing, instrumental performance, composition, musicology, choral conducting, jazz and electronic music. It also trains music teachers for secondary schools and holds regular master classes and seminars. Admission to the diploma courses is based on an entrance examination with five €1000 scholarships awarded annually by the Fondazione Rossini. conservatory has three specialised research laboratories: 20th Century and Contemporary Music; Early Music; and Electronic and Experimental Music (LEMS), which was established in 1971 by the Italian composer Aldo Clementi. There are several permanent ensembles in which both students and faculty participate, including the Symphony Orchestra, Wind Orchestra, Jazz Orchestra, Saxophone Ensemble, and Gregorian Choir. The ensembles and soloists perform a variety of public concerts in Pesaro and the surrounding region during the year, including those celebrating Christmas, Easter, Ferragosto, May Day, Festa della Repubblica, and Saint Cecilia's Day. The conservatory also co-produces Progetto Orfeo, an international university festival of opera and musical theatre, and runs two national music competitions, Harpsichord (established in 1991) and Bassoon (established in 2004).

Example Output:
b