Definition: 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.
Input: Question: Who won the Memorial Cup in 1963 before Ron Ellis won it? Passage:Ellis was signed by the Leafs and played junior hockey with the Toronto Marlboros of the Ontario Hockey Association from 1961–1964. He played on the team that won the Memorial Cup in 1964. Ellis became a full-time Leaf in 1964–65 and played 11 seasons to 1974–75, winning the Stanley Cup in 1967. He was also a member of Team Canada at the 1972 Summit Series. Ellis retired at age 30 during training camp in 1975, coming off the most productive season of his career with 61 points. He said he no longer had the desire to play and denied that his decision had anything to do with being passed over as team captain in favour of Darryl Sittler a month earlier. In 1977, Ellis came out of retirement to play for Canada at the world hockey championships and then decided to resume his NHL career with the Leafs in 1977–78.


b