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: In what year was the coach whom Laperrière worked under in 1981 born? Passage:After retiring, Laperrière became the coach of the Montreal Juniors in 1975–76. He would resign the following year due to his distaste of the pressure and violence at the amateur level. In 1980–81, Laperrière rejoined the Canadiens organization as an assistant coach to Claude Ruel. He would stay as the Canadiens assistant coach for 16 years, serving under six different head coaches, and winning two Stanley Cups in 1985–86 and in 1992–93. In 1997–98, Laperrière joined the Boston Bruins staff, serving under Pat Burns as an assistant coach again. He spent four seasons in Boston before joining the New York Islanders in 2001–02. After two seasons with the Islanders, Laperrière became a part of the New Jersey Devils organization in 2003–04. Once again, Laperriere served as an assistant coach until 2006–07 when he was named a special assignment coach for the Devils.


b