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: Which of the two athletes Giuseppe Caso replaced is older? Passage:On 12 July 2019, Caso joined to Serie C club Arezzo on a free-transfer and a 2-year contract. On 11 August he made his debut for the club as a substitute replacing Mattia Rolando in the 53rd minute of a 4–3 away defeat against Crotone in the second round of Coppa Italia. Two weeks later, on 25 August he made his league debut for Arezzo as a substitute replacing Walid Cheddira in the 65th minute of a 3–1 home win over Lecco. On 23 October, Caso played his first match as a starter or Arezzo, a 1–1 away draw against Pro Vercelli, he was replaced by Aniello Cutolo in the 61st minute. Four days later, on 27 October, he scored his first goal for the club in the 63rd minute of a 2–0 home win over Giana Erminio. On 10 November he played his first entire match for the club, a 2–1 home win over Olbia.


a