Q: 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: Which teams were involved in the World Series where Cox was the winning pitcher in Game 5? Passage:Danny Bradford Cox (born September 21, 1959) is a former Major League Baseball pitcher. He pitched for the St. Louis Cardinals from 1983 to 1988, the Philadelphia Phillies from 1991 to 1992, the Pittsburgh Pirates in 1992, and the Toronto Blue Jays from 1993 to 1995, when he retired. Over his eleven-year career, Cox won 74, lost 75, recorded a 3.64 ERA, 21 complete games, 5 shutouts and 8 saves. He won Game 3 of the 1985 National League Championship Series with the Cardinals trailing 2 games to none. Cox pitched well in the 1985 World Series, but earned two no-decisions. He pitched a shutout in Game 7 of the 1987 National League Championship Series, and was the winning pitcher in Game 5 of the 1987 World Series. After being removed in Game 7, Cox argued with umpire Dave Phillips and got ejected as he left the field.

A:
b