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: Who was the coach of the NCAA Niagara Purple Eagles women's ice hockey team when Ashley Riggs began playing for them? Passage:Amongst their numerous team alumni, Ashley Riggs graduated to the NCAA Niagara Purple Eagles women's ice hockey team in 2004, before jumping to the National Women's Hockey League and later the Canadian Women's Hockey League. As a member of the Under-22 Canada national women's ice hockey team Riggs competed in four Air Canada Cups, winning Gold in three of them. Natalie Spooner graduated to the NCAA Ohio State Buckeyes women's ice hockey team in 2008. She has competed in multiple IIHF events as a member of the Women's National Team and plays in the CWHL as a member of the Toronto Furies. In 2008, Jenn Wakefield graduated to the NCAA New Hampshire Wildcats program. After two seasons she switched to the Boston University Terriers women's ice hockey team. Wakefield is a National Team member and has played in the CWHL with the Vaughan Flames and now with the Toronto Furies. Tara Watchorn also graduated to NCAA in 2008 with the Boston University Terriers women's ice hockey team. She made her debut with the Canadian National Team in 2010 and plays for the Calgary Inferno of the CWHL.


a