Definition: 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: Question: How old was Daimonji when he retired? Passage:He was an amateur sumo wrestler at Doshisha University and upon turning professional in 1995 was given makushita tsukedashi status, allowing him to begin in the third makushita division. He joined Isenoumi stable, where another Doshisha University graduate, Tosanoumi, had joined the previous year. He was given the shikona of Oikari (literally "large anchor"). He was promoted to the juryo division in May 1997, becoming the first sekitori from Kyoto Prefecture since the retirement of Daimonji in July 1973, and he was to win two juryo division championships or yusho in 1998 and 2001. He first reached the top makuuchi division in November 1998 but was demoted after only one tournament. He had two further stints the top division, a two tournament run in January and March 2000, and four tournaments from January until July 2002. His highest rank was maegashira 11 and he had an overall win/loss record in makuuchi of 4560. He was demoted back to the makushita division in September 2004 and announced his retirement after the following tournament in November.

Output:
b