You will be given a definition of a task first, then some input of the task.
In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.

Question: Who currently holds the position held by Frank Calder? Passage:The Pittsburgh Pirates are traced back to the Pittsburgh Yellow Jackets of the US Amateur Hockey Association. The Yellow Jackets' owner was Roy Schooley, a former referee. Even though the team won the USAHA Championship in 1924 and 1925, Schooley encountered financial problems. His team was then sold to attorney James F. Callahan. Pittsburgh was granted a franchise by the National Hockey League on November 7, 1925. The move came after Eddie Livingstone, the former owner of the Toronto Shamrocks and the Toronto Blueshirts of the National Hockey Association saw Pittsburgh as a possible member for a proposed rival league to the NHL; Pittsburgh had, in the 1890s, been the first metropolitan area to professionalize the game of ice hockey. In order to thwart the new league, the President of the NHL, Frank Calder, negotiated to put a franchise in Pittsburgh, which become the seventh team to join the NHL as well as the league's third US-based team. Callahan then renamed his team the Pittsburgh Pirates, after he received permission from Barney Dreyfuss, the owner of the Pittsburgh Pirates baseball team.

Output:
b