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: What year was the single that once held the title of best-selling digital song of all time release? Passage:Described by will.i.am as "party album[s]", The Black Eyed Peas released the electronic dance-influenced The E.N.D. and The Beginning in 2009 and 2010, following the 2008 election of Barack Obama as President of the United States. The band welcomed Obama's election; will.i.am had recorded and released "Yes We Can", a single that promoted Obama's election campaign during the Democratic Party primaries, and often claims the song had helped Obama get elected. The band's most commercially successful single during this period, "I Gotta Feeling", was inspired by the band's perception of being "in the center of a ginormous change in America". The track became the best-selling digital song of all time until it was surpassed by Pharrell Williams' "Happy" in 2014. By the end of 2010, The E.N.D. had sold over eleven million copies worldwide, while The Beginning had sold over two million copies worldwide. The band had intended to return to the studio to create their seventh studio album soon after the release of The Beginning, though frequent delays and Taboo's diagnosis with testicular cancer in 2014, along with his subsequent treatment and recovery, led to the project being put on hiatus.


Output: b


Input: Consider 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.


Output: a


Input: Consider Input: Question: How long had the Royal Navy been in existence for by the year Shilling became a chief master? Passage:Originally a petty officer in the Royal Navy, from this position he gradually raised himself to the higher ranks of the service, and on 30 May 1603 he became for life one of the six chief masters of the navy. In 1617 he obtained leave from the admiralty to take part in the fifth joint-stock voyage undertaken by the East India Company, and he sailed from Gravesend on 4 February as master of the Anne Royal, one of a squadron of five, under the command of Martin Pring. On 6 February Maurice Abbot, Deputy-governor of the EIC mustered the men, paid their wages and the fleet left the Downs on 5 March. They arrived at Saldanha Bay (now Table Bay) on 21 June. On the voyage the fleet captured a Portuguese vessel from Mozambique, the Don Pedro de Almeyda, laden with a cargo of 50 quintals of elephants' teeth. The ships arrived at Surat in September 1617 whereupon on the orders of Sir Thomas Roe, English ambassador to the Mughal Emperor Jahangir, Shilling departed Swally for the Red Sea. He arrived off Mocha on 13 April 1618 and was successful in obtaining a firman from the local ruler for the English to trade there and at Aden. He was subsequently placed in command of the Angel, a vessel formerly belonging to the Dutch East India Company, and in it he conveyed home Sir Thomas Roe. He arrived in England in the autumn of 1618. The EIC immediately obtained leave from the Duke of Buckingham to employ him on another voyage. On 25 March 1620 Shilling sailed from Tilbury on board the London as chief commander of a squadron of four vessels.



Output: b