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.

Example Input: Question: On what album was the Gerry Rafferty song from that is referenced in the show? Passage:While telling Bart and Lisa about 1990, Homer says, "Tracey Ullman was entertaining America with [...] crudely drawn filler material." This is a reference to The Simpsonss debut as "bumpers" airing before and after commercials on The Tracey Ullman Show. The song "Those Were the Days" parodies the opening credits of the television show All in the Family. One of the people who run over the saxophone is a man on a tricycle, who promptly falls over. This is a reference to the show Rowan & Martin's Laugh-In. At the beginning of the flashback, the song "Don't Worry, Be Happy" by Bobby McFerrin can be heard. In the flashback, Dr. Hibbert fashioned his hair and attire like Mr. T in The A-Team. Homer can be seen watching Twin Peaks and The Giant is then shown waltzing with the White Horse. In King Toot's music store, when Homer buys Lisa her first saxophone, there is a guitar in the background that is similar to Eddie Van Halen's "Frankenstrat" guitar. The photo beside Kent Brockman on the news has him modeled after the Coppertone Girl. At the end of the episode, Lisa performs a brief, cruder rendition of the hook of "Baker Street" by Gerry Rafferty on her new saxophone before the music segues into the original song.

Example Output: b

Example Input: Question: How many games did Félix de los Heros play for Barakaldo FC and Sevilla FC combined? Passage:It is unclear where or when de los Heros started his playing career but in 1932 he was playing for Barakaldo FC. In 1934 he moved to Sevilla FC. Late in 1936 he joined Gimnástico de Valencia. In 1937, in the middle of the Spanish Civil War, he joined Barcelona FC. His first game for them was on the 16 May 1937 against the Catalan national team. He never actually played for them in the domestic league but participated in the Barcelona FC tour of North America later in 1937. When the tour ended he signed for Brooklyn Hispano, a United States team that played in the American Soccer League. Later he moved to Mexico where he played for Club Deportivo Euzkadi in the Primera Fuerza league for the 1938/39 season. He also played for the Basque Country national football team twice during that period. Later he joined Club España, before going on to play in several other Mexican teams.

Example Output: a

Example Input: Question: In what city did Shea earn his doctorate? Passage:On graduating in 1943, Shea enlisted in the U.S. Navy and enrolled in a program that would put him through college. He began his studies at Dartmouth College, later moving to MIT and finally to the University of Michigan, where he would remain until he earned his Doctorate in 1955. In 1946, he was commissioned as an Ensign in the Navy and received a Bachelor of Science degree in Mathematics. Shea went on to earn a MSc (1950) and a Ph.D. (1955) in Engineering Mechanics from the University of Michigan. While obtaining his doctorate, Shea found the time to teach at the university and to hold down a job at Bell Labs.

Example Output:
b