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 long had Dirk Koetter been head coach? Passage:Hawkins moved up to NCAA Division I-A football at Boise State in 1998 as an assistant under first-year head coach Dirk Koetter. After three seasons, Koetter accepted the head coaching job at Arizona State, and Hawkins was promoted from assistant head coach to head coach on December 2, 2000. In 2004, Hawkins was honored with his second Western Athletic Conference (WAC) Coach of the Year title in three years. Through the 2005 season, he compiled a 5311 record (.828) in five seasons as Boise State's head coach, including a 373 record (.925) in WAC competition with four straight WAC titles. Only Walter Camp, George Washington Woodruff and Bob Pruett had more total wins in their first five years of head coaching. He holds a 31game WAC winning streak, the longest in conference history. One of his first hires at Boise State was Chris Petersen as his offensive coordinator; Petersen was a quarterback at UC Davis while Hawkins was an assistant coach, and was the wide receivers coach at Oregon under head coach Mike Bellotti. Petersen succeeded Hawkins as head coach following the 2005 season, when Hawkins departed for Colorado.

Output:
b