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 old was the person who chaired the AUKcon convention held in February 1994 in London? Passage:AUKcon was a one-day anime convention held in London, England, on 19 February 1994. The venue was the Conway Hall (Red Lion Square), and the registration charge was £10. AUKCon was chaired by Helen McCarthy. During the convention, Lawrence Guinness of Manga Video announced that the company had acquired distribution rights for Ranma 1/2 and planned to start releasing it in 1994. Also announced included plans for the series Bio Booster Armor Guyver. One of the guests that attended was Toren Smith, writer of the American Dirty Pair comic and founder of Studio Proteus. The convention was the first UK anime event to provide a fan room with free space for fanzines and fanclubs. It also ran a gaming programme and an art and model show, as well as anime screenings and talks. 

Example Output: b

Example Input: Question: Who was the host for the 2002 Women's Chess Olympiads where Zapata competed? Passage:In 1999, in Santiago won the Pan American Girl's Chess Championship in the age group U20, and in 2000 in Bento Gonçalves won the Pan American Girl's Chess Championship in the age group U18. In 2002, in La Paz she was the second in the Pan American Girl's Chess Championship in the age group U20. In August 2005, she was second in the Pan American Women's Chess Championship, only in a tie-break after losing to Argentinean chess player Claudia Amura. She won four times in the Peruvian Women's Chess Championships: 2000, 2002, 2003 and 2004. In October 2005, after winning the FIDE South America zone tournament, she qualified for the Women's World Chess Championship. In 2006, in Yekaterinburg she participated in the Women's World Chess Championship, where won Kateryna Lagno in the first round, but in the second round lost Svetlana Matveeva. After repeated won the FIDE South America zone tournament in 2007 in Trujillo, where she surpassed her compatriot Deysi Cori, was selected at Women's World Chess Championship in Nalchik, but refused to participate, and her rival in the first round Antoaneta Stefanova went to the second round without a fight. Played for Peru at three Women's Chess Olympiads (2002—2006). In 1999, she was awarded the FIDE International Women International Master (WIM) title.

Example Output: a

Example Input: Question: Who was the champion of the race in which Surtees qualified 15th and finished eighth? Passage:Surtees was formed by John Surtees after he left BRM to start his own team. He bought a McLaren M7C so that he could use it until the TS7 was ready. The car made its debut at the 1970 British Grand Prix with Surtees driving. He qualified 19th and retired with an oil pressure failure. In Germany, Surtees qualified 15th and was classified in ninth, although his race ended in an engine failure. The Austrian Grand Prix saw Surtees qualify 12th and retire when his engine blew. In Italy, the Englishman qualified 10th and retired when an electrical failure stalled the car at the start. The Canadian Grand Prix saw Surtees qualify and finish fifth. The team owner was joined by Derek Bell as a driver for the United States Grand Prix. Surtees qualified eighth and Bell 13th. The 1964 World Champion retired when his engine blew and Bell finished sixth. In Mexico, the team only entered Surtees. He qualified 15th and finished eighth. 

Example Output:
b