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.

Input: Consider Input: Question: Which manager of Port Vale FC had the best record during the 1950s? Passage:The first confirmed non-English manager during peacetime was Jock Cameron, who held the job for a year following World War I. Freddie Steele was a highly successful manager, who took the club to their second Third Division North title in 1953–54. In 1957 Scotsman Norman Low took the managerial reins, winning the Fourth Division title in 1958–59. The next manager of note was Sir Stanley Matthews, who was full-time manager for less than a year; his resignation followed a scandal involving players' pay. Widely considered to be the club's greatest ever manager, John Rudge led the "Valiants" to cup glory in 1993; his best success was the league however, securing three promotions in his sixteen-year reign. Bruno Ribeiro, from Portugal, became the first manager born outside of Britain to manage the club when he was appointed as manager in June 2016.


Output: a


Input: Consider 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.


Output: a


Input: Consider Input: Question: Is the first proposer of the existence of an Abydos Dynasty still alive today? Passage:The existence of an Abydos Dynasty was first proposed by Detlef Franke and later elaborated on by Kim Ryholt in 1997. Ryholt observes that two attested kings of this period, Wepwawetemsaf (Wepwawet is his protection) and Pantjeny (He of Thinis), bore names in connection with Abydos: Wepwawet being an important Abydene god and Thinis being a prominent city, located a few miles north of Abydos. Additionally, Wepwawetemsaf, Pantjeny and Snaaib, another king of the period, are each known from single stelae discovered in Abydos, which could be a sign that this was their seat of power. Finally, Ryholt argues that the existence of an Abydos Dynasty would explain 16 entries of the Turin canon at the end of the 16th Dynasty. The Abydos Dynasty may have come into existence in the time lapse between the fall of the 13th Dynasty with the conquest of Memphis by the Hyksos and the southward progression of the Hyksos to Thebes.



Output: b