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: What is the official mascot of the Mountain West football team that Ole Miss beat in 2015? Passage:Ole Miss's 2015 season began with easy victories over FCS foe UT-Martin and the Mountain West's Fresno State, and continued their momentum by defeating then-no.2 Alabama on the road, which would become the signature victory of the Rebels' 2015 campaign. Ole Miss then rose to no.3 in the AP Poll, and although they were heavy favorites in their next matchup against Vanderbilt, they struggled mightily, but ultimately emerged victorious. They Rebels maintained their no.3 ranking before getting blown out by Florida on the road and fell to no.14 before bouncing back against New Mexico State. The Rebels entered their next game with a #13 ranking against rival Memphis, in what was one of the most anticipated in the history of Memphis football. Ole Miss, despite being double digit favorites, lost by 13 points, causing them to fall 11 spots in the rankings to no.24. The Rebels followed with two wins against SEC West opponents Texas A&M and Auburn and climbed to no.18 in the rankings and controlled their own destiny the SEC West, but a heartbreaking loss to Arkansas the following week caused them to fall to second place in the SEC West and to fall out of the rankings for the first time since the 2013 season. However, Ole Miss finished the regular season with double digit wins over ranked SEC Rivals LSU and Mississippi State and rose to no.12 in the College Football Playoff poll, which earned them a Sugar Bowl berth for the first time since 1970, where they defeated no.16 Oklahoma State and ultimately finished ranked no.10 in the AP Poll, their first top-ten finish since 1969.


b