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.

Example Input: Question: Which of the two countries that the Soviets sent troops to in January 1991 had the larger army? Passage:On 12 May 1990 the leaders of the Baltic republics signed a joint declaration known as the Baltic Entente. By mid-June the Soviets started negotiations with the Baltic republics on condition they agreed to freeze their declarations of independence. The Soviets had a bigger challenge elsewhere, in the form of the Russian Federal Republic proclaiming sovereignty in June. Simultaneously the Baltic republics also started to negotiate directly with the Russian Federal Republic. In Autumn 1990, they set up a customs border between the Baltic states, the Russian Federation and Belarus. After the failed negotiations the Soviets made a dramatic attempt to break the deadlock and sent troops to Lithuania and Latvia in January 1991. The attempts failed, dozens of civilians were killed, and the Soviet troops decided to retreat. In August 1991, the hard-line members of the Soviet government attempted to take control of the Soviet Union. One day after the coup on 21 August, the Estonians proclaimed independence. Shortly afterwards Soviet paratroops seized the Tallinn television tower. The Latvian parliament made similar a declaration at the same day. The coup failed but the Collapse of the Soviet Union became unavoidable. On 28 August, the European Community welcomed the restoration of the sovereignty and independence of the Baltic states. The Soviet Union recognised the Baltic independence on 6 September 1991. The Russian troops stayed for an additional three years, as Boris Yeltsin linked the issue of Russian minorities with troop withdrawals. Lithuania was the first to have the Russian troops withdrawn from its territory in August 1993. On 26 July 1994 Russian troops withdrew from Estonia and on 31 August 1994, Russian troops withdrew from Latvia. The Russian Federation ended its military presence in Estonia after it relinquished control of the nuclear facilities in Paldiski on 26 September 1995 and in Latvia after Skrunda-1 suspended operations on 31 August 1998 and subsequently dismantled. The last Russian soldier left Skrunda-1 in October 1999, thus marking a symbolic end to the Russian military presence on the soil of the Baltic countries.

Example Output: a

Example Input: Question: Is the political committee that Zorin held a managerial position in until 1932 still active? Passage:Zorin was born in Novocherkassk. After joining the Soviet Communist Party in 1922, Zorin held a managerial position in a Moscow City Committee and the Central Committee of the Komsomol until 1932. In 1935, he graduated from the Communist Institute of Education (Высший коммунистический институт просвещения). In 1935-1941, Zorin worked on numerous Party assignments and as a teacher. In 1941-1944, he was employed at the People's Commissariat for Foreign Affairs. In 1945-1947, Zorin was the Soviet ambassador to Czechoslovakia. In 1948, he helped organize the Czechoslovak coup d'état. In 1947-1955 and again in 1956-1965, he was Deputy Minister of Foreign Affairs of the Soviet Union. At the same time, he held other positions, including that of the permanent Soviet representative at the UN Security Council in 1952-1953. In 1955-1956, Zorin was the first Soviet ambassador to the Federal Republic of Germany. In 1956-1965, he again represented the Soviet Union at the UN Security Council, which led to his famous confrontation with Adlai Stevenson on 25 October 1962, during the Cuban Missile Crisis.

Example Output: b

Example Input: Question: Did the JG 77 battle the same enemies during the Balkans campaign and the invasion of Crete? Passage:Woldenga's career started as a captain in the merchant marine. He started his flight training in 1928 and worked as chief pilot for the FVK Warnemünde. He transferred to the newly emerging Luftwaffe, taking command as Gruppenkommandeur of the I./Jagdgeschwader 131 (JG 131) — later renamed to I./Jagdgeschwader 1 (JG 1) — on 1 April 1937. With this unit he participated in the invasion of Poland in 1939. He surrender command of the Gruppe on 1 February 1940 and was transferred to the Reichsluftfahrtministerium. He briefly led Jagdgeschwader 27 (JG 27) on the Channel Front from 11 October to 22 October 1940 before he was made Geschwaderkommodore of Jagdgeschwader 77 (JG 77). Under this command, JG 77 participated in the Balkans Campaign and invasion of Crete. JG 77 claimed 50 aerial victories. Woldenga received the Knight's Cross of the Iron Cross. He commanded of JG 27 on 21 June 1941 during the invasion of the Soviet Union and claimed 4 aerial victories. He relocated the Geschwaderstab to North Africa in December 1941. He was appointed Fliegerführer Balkan on 10 June 1942. His last service position of the war was commander of the Luftkriegschule 10 in Fürstenwalde near Berlin. He is credited with three aerial victories of which two were claimed on the Eastern Front.

Example Output:
b