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 town that the Dunckers returned to in Germany was the smaller of the two, Rostock or Bernau? Passage:The Dunckers returned to Germany in 1947, settling first in Rostock and later in Bernau, just outside Berlin. Home was now part of the Soviet occupation zone, relaunched in October 1949 as the German Democratic Republic a new separated German state with its political and economic structures modelled on those of the Soviet Union. By now chronically ill, Käte Duncker was no longer politically engaged, and never bothered to sign her communist party membership across to the new Socialist Unity Party ("Sozialistische Einheitspartei Deutschlands" / SED), which, following its creation in April 1946, quickly became the ruling party in a new kind of German one-party dictatorship. Nevertheless, on 2 June 1948 she wrote to her old friend and comrade, Wilhelm Pieck, imploring him to use his personal influence to find out what had happened to her younger son, . Like Wolfgang Duncker, Wilhelm Pieck had moved to Moscow in 1935: unlike Wolfgang, he had survived, and was now a top German politician in the Soviet occupation zone. (In 1949 he became East Germany's first president.) On 10 November 1948 the Dunckers received a message from the Red Cross informing them that their younger son had died in on 20 November 1942. According to a detailed report submitted by his wife to the Central Committee of the exiled German Communist Party in Moscow on 22 September 1939, Wolfgang had been arrested on 21 March 1938 and interrogated. He had been forced, after four months, to sign a false confession, and then taken to a concentration camp where conditions had been grim. (Wolfgang's widow had survived the war, working in a (military) tank factory, and returned to the Soviet occupation zone in 1945 accompanied by her second husband and her two surviving children.)


a