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: When was the place built that Kozlowsa debuted as Lieu at? Passage:She first gained international attention by winning the first prize at the Benson and Hedges International Voice Competition in London, which was followed by winning second prize at the International Vocal Competition in Rio de Janeiro. Early on she got a long-term contract with The Grand Theatre in her home town Poznan to which she was closely linked from 1984 to 1998. Already in January 1986 her international career started and she debuted as Liu at the Royal Opera House, Covent Garden, and thereafter sung at the most prestigious opera houses of Europa and America. In Italy she performed at Teatro alla Scala in Milan, at Teatro La Fenice in Venice and at the Maggio Musicale Fiorentino, in Austria at the Graz Opera and at the Vienna State Opera, in Germany at the Bavarian State Opera of Munich, at the Hamburg State Opera and at the Deutsche Oper in Berlin, in Paris at the Theatre du Chatelet, in Geneva at the Grand Theatre, in Brussels at the Theatre de la Monnaie and in Buenos Aires at the Teatro Colon. In the United States she earned high acclaim as Sandrina in Mozart's La finta giardiniera at the Brooklyn Academy of Music, as Donna Elvira at the Los Angeles Opera and as Alice Ford in a concert version with the Minnesota Orchestra under Jeffrey Tate. At the Atlanta Opera she stunned public and press in the title role of Puccini's Madama Butterfly.

Output:
b