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 people could Stamford Bridge seat the year York joined Aston Villa? Passage:York started his career with Handsworth Royal, Birchfield Rangers and the Royal Air Force, and also guested for Chelsea during World War I. In March 1915 he joined Aston Villa as an amateur, signing professional forms in August 1919. He scored one goal in 17 games in 1919–20, but did not feature in the 1920 FA Cup Final, which ended in a 1–0 victory over Huddersfield Town at Stamford Bridge. He appeared just 11 times in 1920–21, before going on to make 47 appearances in the 1921–22 campaign, as the "Villans" finished fifth in the First Division. He scored nine goals in 37 games in 1922–23 and five goals in 43 games in 1923–24. He also appeared at Wembley in the 1924 FA Cup Final, in a 2–0 defeat to Newcastle United. He scored seven goals in 34 matches in 1924–25, before hitting 20 goals in 44 appearances in 1925–26. He bagged 13 goals in 43 games in 1926–27, before being limited to just four goals in 30 appearances in 1927–28. He rediscovered his scoring form with 18 strikes in 48 matches in 1928–29, before hitting seven goals in 32 games in 1929–30. However he played just four times in the 1930–31 campaign, as Villa finished second in the league with an English record of 128 top-flight league goals scored.


Ex Output:
a


Ex Input:
Question: How many soldiers did Britain send to World War I the year Roebuck arrived on the Western Front? Passage:As a boy, Roebuck worked as a trammer and after being sentenced to one month's imprisonment for stealing a watch in 1904, he enlisted in the York and Lancaster Regiment. Over the next seven years, he was stationed in India and Ireland and was promoted to lance corporal, but was demoted back to private in 1910 for "misconduct". He married in 1908 and had two children. Roebuck was discharged into the reserves in 1912 and likely returned to work as a miner prior to becoming a professional footballer in 1913. After Britain's entry into the First World War in August 1914, he was called up by the York and Lancaster Regiment and arrived on the Western Front in September 1914. On 18 October 1914, Roebuck recorded as "presumed dead" after an attack near Beaucamps-Ligny during the Race to the Sea. His death was confirmed by two comrades in January 1915. Roebuck is commemorated on the Ploegsteert Memorial to the Missing.


Ex Output:
a


Ex Input:
Question: What team did Trinity play in the cup final when Metcalfe was thirty-six years old? Passage:"James Metcalfe - Of the many fine players who figured in Trinity's ranks in the early N.U. days was one who gave outstanding service to the club and in whom the players could always have supreme confidence on the last line of defence. Jimmy Metcalfe soon won recognition as one of the finest full-backs in the country. Born in Cumberland, Jimmy's early football was with Askham-in-Furness (sic Askam-in-Furness), with whom he started in 1890 under R.U. rules. His first club in Yorkshire was Barnsley R.U. and thence to Featherstone. Whilst there, in season 1896-7, he played twice for North v. South - these being R.U. trial matches - and in that season too he figured in all Yorkshire's R.U. county games. It was later - but still in 1897 - that he turned to the Northern Union code and joined Trinity. Here his distinctions were continued and he was a member of the Yorkshire N.U. side which won the County Championship of 1897-8 and again in 1898-9. We can hardly do justice to his fine career in what must necessarily be a short account, but mention must be made of the fact that he played in Trinity's successful Cup Final at Headingley Rugby Stadium, Leeds in 1909, when he was thirty-six years old. And that was not the end. He did not cease to play until 1911 and, in his last match for Trinity gave a final display of his goal-kicking ability by adding three to his wonderful record. Jimmy's record of kicking eleven goals in a match has been equalled twice, but never extended. He set up the record on April 6, 1909, against Bramley at Belle Vue. Trinity's score was 11-15-67 to 2-2-10." 


Ex Output:

a