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.

Input: Consider Input: Question: In what year did Ostashenko's country join the first world war? Passage:Ostashenko was born on 19 June 1896 in the village of Bolshaya Lyubshchina, Yanovichskoy volost, Vitebsky Uyezd, Vitebsk Governorate to a peasant family. He graduated from four grades at a gymnasium. During World War I, he was mobilized for military service on 7 August 1915, being sent to the 4th Company of the Reserve Battalion of the Petrograd Lifeguard Regiment in Petrograd. With the battalion, he fought with the Southwestern Front between July 1916 and February 1917, then returned to Petrograd before being demobilized on 13 March 1918. In July, he volunteered for the Red Army, serving in the Vitebsky Uyezd military commissariat as a clerk and instructor organizer. From May 1919 Ostashenko served as a Red Army man and political soldier a Communist mobilized to conduct political work in the army in the march battalion of the Vitebsk Reserve Regiment. From July he served as an assistant platoon commander in the 84th Rifle Regiment of the 10th Rifle Division, which fought against the Northwestern Army near Petrograd as part of the 15th Army of the Western Front. He entered the Smolensk Commanders' Infantry Courses in November and upon graduation in June 1920 became a platoon commander in the Rzhev-based 2nd Reserve Regiment. This assignment proved to be brief and a month later, Ostashenko became adjutant of the 4th Landing Detachment for armored trains with the Western Front. He fought with the detachment, which provided landing parties for armored trains, in the PolishSoviet War and was wounded twice.

Output: a

Input: Consider Input: Question: Who owned the team that won the 1998 Leinster Senior Football Championship? Passage:Karl O'Dwyer was a footballer from Waterville in South Co Kerry. He played with the Kerry team that were shocked by Clare in the final of the 1992 Munster Senior Football Championship. He later played with Kildare and had much success when his father Mick was manager. In 1998 he helped Kildare to their first Leinster Senior Football Championship title since 1956, he later helped his team to a first All Ireland final since 1928 but lost out to Galway on the day. In the semi final Kildare beat O' Dwyers native Kerry. At the end of the year he picked up an All Stars Award at Full Forward. In 2000 he once again helped Kildare to a Leinster title. O'Dwyer retired from inter-county in 2002 following Kildare's defeat to Kerry in the All-Ireland Qualifiers.

Output: a

Input: Consider Input: Question: How many years were there between Schuyler's visit and the release of War and Peace? Passage:In the spring of 1868 he made his first trip to the edge of Central Asia, traveling with a Russian merchant, Vasilii Alekseich, by steamboat down the Volga to Samara, then by carriage to Orenburg, which at the time was the base for Russian military operations The Russians had occupied the Khanate of Bukhara in 1866 and were advancing toward Samarkand. In 1868, Schuyler was a guest of Tolstoi for a week at his estate at Yasnaya Polyana, at the time when Tolstoi was finishing War and Peace. He helped Tolstoi rearrange his library, and went hunting with him. Tolstoi, who was interested in public education in the United States, asked Schuyler for copies of American primers and school textbooks. Schuyler received Tolstoi's permission to translate his novel The Cossacks into English. In 1869, the new Administration of President Ulysses Grant removed Schuyler from his post in Moscow and replaced him with a political appointee. Schuyler was able to obtain a post as consul to the Russian port of Reval (now Tallinn). In November, 1869, President Grant appointed a new Minister to Russia, Andrew Curtin, a former Governor of Pennsylvania who knew nothing of Russia. Curtin was impressed by Schuyler and appointed him as the secretary of the American legation in St. Petersburg, a post which Schuyler held until 1876.
Output: b