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: Who has played for more teams the original striker for FC Porto at the beginning of 2003-04 season or the player that replaced him? Passage:The 200304 season began with another 10 win over Uniao de Leiria, which gave the club its 13th Supertaca. Weeks later, Porto failed to repeat this result in the 2003 UEFA Super Cup, losing 10 to Milan. The departure of striker Helder Postiga was compensated by the signing of South Africa's Benni McCarthy, whose 20 league goals helped Porto in its league title defence and crowned him the competition's top scorer. Mourinho entered the 200304 UEFA Champions League with confidence to his team. Porto finished second in its group, losing only once to Real Madrid, and advanced to a round-of-16 meeting with Manchester United. Porto scored on the 90th minute of the second leg at Old Trafford to draw 11 and advance to the quarter-finals with a 32 aggregate win. The team then overcame Lyon and Deportivo La Coruna and reached the Champions League final, where it defeated Monaco 30 to lift the club's second European Champion Clubs' Cup. A 21 loss to Benfica in the Taca de Portugal final, held 10 days before, prevented another treble-winning season.

Ex Output:
b

Ex Input:
Question: Is the university of Paris in France? Passage:Following his completion of secondary school, Demieville spent time studying in Munich, London, and Edinburgh, where he was able to attend lectures by George Saintsbury at the University of Edinburgh. He then attended the University of Paris, where he wrote an essay on the musical suite of the 17th and 18th centuries and was awarded a licentiate degree in 1914. Demieville then spent the year 1915 studying at King's College London where he was introduced to Chinese, which quickly became his focus. After returning to France, Demieville studied at the Ecole des Langues Orientales Vivantes (School of Living Oriental Languages), after which he moved to the College de France, where he further studied Chinese under the tutelage of Edouard Chavannes and began learning Sanskrit from Sylvain Levi. He earned his Diplome from the Ecole des Langues Orientales Vivantes in 1919.

Ex Output:
b

Ex Input:
Question: Of the last two Ruthenian kings were joint rulers, which was the oldest? Passage:The Romanoviches (Izyaslavichi of Volhynia)were the line of Roman the Great, descended from Mstislav I of Kiev through his son Iziaslav II of Kiev and his grandson Mstislav II of Kiev, father of Roman the Great. The older Monomakhovychi line that ruled Principality of Volhynia, they were eventually crowned kings of Galicia and Volhynia and ruled until 1323. Romanovychi displaced the older line of Izyaslavychi from Turov and Volhynia as well as Rostyslavychi from Galicia. The last were two brothers of Romanovychi, Andrew and Lev II, who ruled jointly and were slain trying to repel Mongol incursions. The Polish king, Wadysaw I the Elbow-high, in his letter to the Pope wrote with regret: "The two last Ruthenian kings, that had been firm shields for Poland from the Tatars, left this world and after their death Poland is directly under Tatar threat." Losing their leadership role, Rurikids, however, continued to play a vital role in the Grand Duchy of Lithuania and the later Polish-Lithuanian Commonwealth. Most notably, the Ostrogski family held the title of Grand Hetman of Lithuania and strove to preserve the Ruthenian language and Eastern Orthodoxy in this part of Europe. It is thought that the Drutsk and related princely families may also descend from Roman the Great.

Ex Output:
a