Given the task definition and input, reply with output. 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.

Question: When was the battle during the Barevenkovo-Lozovaya operation that Zinoviev was captured? Passage:Ivan Dmitrievich Zinoviev (Russian: ; 17 January 1905 1942) was a Red Army colonel and Hero of the Soviet Union. Zinoviev began his military service with the OGPU Border Troops and fought against the Basmachi. He was awarded the title Hero of the Soviet Union and the Order of Lenin for his leadership of a border post during the Winter War. After Operation Barbarossa, Zinoviev became commander of the 393rd Rifle Division and led the division during the Barvenkovo-Lozovaya Operation but was captured and seriously wounded during the Second Battle of Kharkov. Zinoviev was sent to a concentration camp in Germany, then transferred to another camp in Norway, where he tried to escape and was shot.
b