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: How many people now live in the city that Moszkowski is from? Passage:He was born in Breslau, Prussia (now the Polish city of Wrocław), into a wealthy Polish-Jewish family whose parents had come to Breslau from Pilica, near Zawiercie, in 1854. He was an ardent Jew at a time when many Jews downplayed their Jewishness. He showed early talent from a very tender age, beginning his musical training at home until 1865, when his family moved to Dresden. There he continued his piano studies at the conservatory. He moved to Berlin in 1869 to continue his studies first at the Julius Stern's Conservatory, where he studied piano with Eduard Franck and composition with Friedrich Kiel, and then at Theodor Kullak's Neue Akademie der Tonkunst, where he studied composition with Richard Wüerst and orchestration with Heinrich Dorn. There he became close friends with the Scharwenka brothers, Xaver and Philipp. In 1871 he accepted Kullak's offer to become a teacher in his academy; as he was also a more than competent violinist, he sometimes played first violin in the orchestra.


b