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: What work is Paul Dukas best known for? Passage:Rodrigo studied music under Francisco Antich in Valencia and under Paul Dukas at the Ecole Normale de Musique in Paris. After briefly returning to Spain, he went to Paris again to study musicology, first under Maurice Emmanuel and then under Andre Pirro. His first published compositions date from 1923. In 1943 he received Spain's National Prize for Orchestra for Cinco piezas infantiles ("Five Children's Pieces"), based on his earlier composition of the same piece for two pianos, premiered by Ricardo Vines. From 1947 Rodrigo was a professor of music history, holding the Manuel de Falla Chair of Music in the Faculty of Philosophy and Letters, at Complutense University of Madrid. Notable students include Yuksel Koptagel, Turkish composer and pianist.

Output:
b