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: Who was the president of Atlantic Records in 1961? Passage:Ain't She Sweet was an American album featuring four tracks recorded in Hamburg in 1961 by The Beatles featuring Tony Sheridan (except for the title song with vocal by John Lennon) and cover versions of Beatles and British Invasion-era songs recorded by the Swallows. As Atlantic Records only had rights to four Sheridan/Beatle recordings recorded by Polydor Records, they filled the rest of the album with Beatle and British Invasion cover songs. When this material was released by Atco Records, there were mono (catalogue number 33-169) and stereo (SD 33-169) editions. Atco also added additional drum overdubs to the four Sheridan cuts on top of the original drum tracks. American drummer Bernard Purdie claims to have performed overdubs of unspecified Beatles records, which would most likely have been for Ain't She Sweet, but this has never been officially confirmed.


Ex Output:
a


Ex Input:
Question: In which venue was the wild card game played in 2014? Passage:Despite having claimed the Wild Card spot on the final day of the regular season, the Giants were able to tab ace Madison Bumgarner for the Wild Card game start. Bumgarner had an excellent regular season for the Giants, finishing with a career-low in ERA and a career-high in strikeouts, finishing fourth in the National League in both categories. On the hill for the New York Mets was Noah Syndergaard, who himself finished 3rd in the NL in ERA and 9th in strikeouts. The pitching matchup didn't disappoint, it took until the bottom of the third inning for the game's first hit and baserunner, with Syndergaard striking out four straight batters on two occasions. The closest either side came to scoring was in the top of the 6th when, after Denard Span singled and stole second base with two outs, Brandon Belt hit a long fly ball to center field which was caught on the dead run by Curtis Granderson, smashing into the wall and holding on. Syndergaard exited after 7 innings, having struck out 10. Crucially as it turned out, the Giants had forced Syndergaard out of the game with Bumgarner still going strong. Another golden opportunity was squandered by the Giants in the top of the 8th inning, when Addison Reed struck out Hunter Pence to end the inning with the bases loaded. After Bumgarner left a runner in scoring position in the bottom of the 8th, the game moved to the 9th with the Mets bringing in closer Jeurys Familia. Brandon Crawford led the inning off with a double to left-center, but Ángel Pagán couldn't lay down the sacrifice bunt and then struck out. Joe Panik worked a walk and Conor Gillaspie stepped up to the plate to launch a three-run home run to right field. Gillaspie had only started the game because Eduardo Núñez was still dealing with a hamstring injury and had to be left off the roster. Bumgarner then got the final three outs, completing the shutout just as he had done in the 2014 Wild Card Game. Bumgarner made 119 pitches, allowed just 6 total baserunners, striking out 6 and setting an MLB record of 23 consecutive scoreless innings pitched in postseason elimination games. With the win, the Giants equalled the Major League record for consecutive postseason series wins with 11, also extending their streak of postseason elimination game wins to 9.


Ex Output:
b


Ex Input:
Question: What was the age difference between the dictator who died in 1998 and the person who replaced him? Passage:Following the death of military dictator and de facto ruler of Nigeria, General Sani Abacha in 1998, his successor General Abdusalami Abubakar initiated the transition which heralded Nigeria's return to democratic rule in 1999. The ban on political activities was lifted, and political prisoners were released from detention facilities. The constitution was styled after the ill-fated Second Republic — which saw the Westminster system of government jettisoned for an American Presidential system. Political parties were formed (People's Democratic Party (PDP), All Nigeria Peoples Party (ANPP), and Alliance for Democracy (AD)), and elections were set for April 1999. In the widely monitored 1999 election, former military ruler Olusegun Obasanjo was elected on the PDP platform. On 29 May 1999, Obasanjo was sworn in as President and Commander-in-Chief of the Federal Republic of Nigeria.


Ex Output:

b