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: Who was the founder of the railroad? Passage:The original train track through Irwindale were built by the Los Angeles and San Gabriel Valley Railroad. The Gold line uses the old right of way of the Los Angeles and San Gabriel Valley Railroad who built the first train tracks through Irwindale in 1887. The Los Angeles and San Gabriel Valley Railroad was founded in 1883, by James F. Crank with the goal of bringing a rail line to San Gabriel Valley from downtown Los Angeles. Los Angeles and San Gabriel Valley Railroad was sold on May 20, 1887 into the California Central Railway. In 1889 the rail line was consolidated into Southern California Railway Company. On Jan. 17, 1906 Southern California Railway was sold to the Atchison, Topeka and Santa Fe Railway and called the Pasadena Subdivision. Amtrak-Santa Fe ran the Southwest Chief and Desert Wind over this line through Irwindale, but relocated the Desert Wind to the Fullerton Line in 1986. The Santa Fe line served the San Gabriel Valley until 1994, when the 1994 Northridge earthquake weakened the bridge in Arcadia and the track was closed till the Gold line was built. The rail line crosses the San Gabriel River on a long girder bridge, then passes through the Santa Fe Dam Recreation Area (how it received its name). The rail line intersected the north end of the former SP Azusa Industrial Track at Irwindale (MP 118.2). Irwindale had a 6,165 foot rail siding that passed the Miller Brewing Company's Irwindale brewery. From there the tracks continued and crossed beneath Irwindale Avenue.

Example Output: b

Example Input: Question: How many franchise locations are there of the place where the Terri Gibbs Trio performed? Passage:Gibbs was born in Miami, Florida, but raised in the Augusta, Georgia, suburb of Grovetown. Although born with eyesight, she lost it as a newborn due to an incubator accident. Despite her blindness, she learned to play piano at age three. As a child, she sang in the church choir and at talent contests, and at age seventeen, she opened for Bill Anderson. Her parents wanted her to be treated no differently from sighted people and she was sent to public school, graduating from Butler High School in Augusta in 1972. She performed in and around the Augusta area and eventually, she met Chet Atkins, who advised her to move to Nashville, Tennessee, to pursue a country music career, which she did at age eighteen. After failing to find a record deal, she returned to Miami and joined a band called Sound Dimension. She continued to perform locally, later forming a band called the Terri Gibbs Trio, which performed at a Steak and Ale in Augusta, Georgia. Gibbs then sent a demo tape to record producer Ed Penney of MCA Records, signing to the label in 1980. Penney was a former Boston disc jockey and a long-time songwriter. He liked her voice on her demo, but felt she needed stronger material. He co-wrote "Somebody's Knockin'" for her and also produced the song.

Example Output: b

Example Input: Question: How long had Mossadegh been in power when the CIA overthrew his government? Passage:Schandermani lived in Tehran, the capital of Iran. In 1953 US Central Intelligence Agency overthrew the Iranian government of Prime Minister Mohammed Mossadegh and restored Shah Mohammed Reza Pahlavi. Schandermani's father was a leftist politician. After CIA coup his father was arrested and sentenced to death. But he escaped from the detention centre and later on moved to the USSR where the Soviet officials granted him political asylum. In the early 60's Schandermani immigrated with his mother to Russia, where family was reunited. In 1961 he went to school in Moscow. Two years later he continued his school education in a special school for foreigners Interdom located in the Russian city Ivanovo. In 1971 he graduated from this school and moved to Dushanbe capitol of the former Soviet Republic of Tajikistan. In 1979 after the fall of the Shah's regime Schandermani went via West-Berlin back to Iran. After his arrival at the Tehran's airport Mehrabad he was arrested and jailed. Four days later he was expelled from the country to the German city Berlin, where he applied for political asylum. In 1992 he was naturalized and became citizen of the Federal Republic of Germany.

Example Output:
b