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: Which CFL team that Chevon Walker was involved with during his football career was found first? Passage:Chevon Walker (born May 9, 1987 in Montego Bay, Jamaica) is a former professional Canadian football running back and kick returner for the Winnipeg Blue Bombers of the Canadian Football League. He played NCAA football for the Sioux Falls Cougars. He played two years of his career as a professional football player in the Canadian Football League for the Hamilton Tiger-Cats. In 2014, the Ottawa Redblacks selected him in the expansion draft. He started the 2015 season with the Ottawa Redblacks before he was released on August 28, 2015. On September 1, 2015, it was announced that Walker had signed with the Winnipeg Blue Bombers. Chevon Walker has over 1000 rushing yards and seven touchdowns in three years of professional play.


b