In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.

Ex Input:
Question: How many years had the Russian leader been in power when Russia recognized Baltic independence in September 1991? 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 Lithuania was the first to have the Russian troops withdrawn from its territory in August 1993.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.

Ex Output:
b

Ex Input:
Question: Which team did the New Orleans Saints beat in the 2006 NFC playoffs? Passage:The Buccaneers played their home opener against the 2006 NFC South champion New Orleans Saints. After scoring only 6 points the week before, the Buccaneers dominated the Saints, on offense and defense, at one point taking a 280 lead. Early in the first quarter, Barrett Ruud recovered a Deuce McAllister fumble, which set up a Tampa Bay scoring drive. Carnell Williams, who was back in the lineup after injuring his ribs the week before, capped off the drive with a one-yard touchdown run. Early in the second quarter, Joey Galloway scored on a 69-yard catch and run from quarterback Jeff Garcia. Inside the two-minute warning, Garcia and Galloway scored again, this time with a 24-yard touchdown, to take a 210 halftime lead. Halfway through the third quarter, Cato June intercepted a pass from Drew Brees. Two plays later, Garcia and Galloway connected for yet another big play, a 41-yard completion to the New Orleans 9-yard line. Williams capped off the drive with his second 1-yard touchdown. New Orleans' first score came with a 1-yard touchdown run by Mike Karney, aided by a 58-yard catch by Phillip Buchanon moments earlier. The Buccaneers improved to 11, into a tie for the NFC South lead. New Orleans fell to 02.

Ex Output:
b

Ex Input:
Question: Did the British Army win the battle that Adair didn't take part in after the German Army retreated to the Hindenburg Line? Passage:Adair fought in the First World War. He joined the British Army, receiving his commission as a probationary second lieutenant on 2 May 1916 in the 5th (Reserve) Battalion of the Grenadier Guards. From January 1917 onwards he served in the trenches of the Western Front in France and Belgium as part of the 2nd Company, 3rd Battalion, Grenadier Guards, with the rank of lieutenant. The battalion was part of the 2nd Guards Brigade of the Guards Division. Adair's first major battle was in the pursuit of the retreating German Army to the Hindenburg Line. The division then took part in the Battle of Passchendaele. Adair, however, took no part in the battle, due to an injury sustained in a bicycle accident in early July 1917. He returned to the battalion in January 1918.

Ex Output:
b