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 version of "I Love You Because" sold more copies, Al Martino's or Leon Payne's? Passage:In 1963, he had his biggest U.S. chart success with "I Love You Because", a cover of Leon Payne's 1950 country music hit. Arranged by Belford Hendricks, Martino's version went to number three on the U.S. Billboard Hot 100 chart, and number one on the Easy Listening chart. The album of the same name went top 10 in the Billboard 200. Martino had four other U.S. top 10 hits in 1963 and 1964 - "Painted, Tainted Rose" (1963), "I Love You More and More Every Day", "Tears and Roses", and "Silver Bells" (all 1964). He also sang the title song for the 1964 film, Hush, Hush, Sweet Charlotte. One of his biggest hits was "Spanish Eyes", achieving several gold and platinum discs for sales. Recorded in 1965, the song reached number five on the UK Singles chart when reissued in 1973. The song, with a tune by Bert Kaempfert originally titled "Moon Over Naples", is among the 50 most-played songs worldwide.


b