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: What was John Holt's career? Passage:Youth activism as a social phenomenon in the United States truly became defined in the mid- to late-nineteenth century when young people began forming labor strikes in response to their working conditions, wages, and hours. Mary Harris "Mother" Jones organized the first youth activism in the U.S., marching 100,000 child miners from the coal mines of Pennsylvania to the U.S. Capitol in Washington, D.C. in 1908. Youth newspaper carriers soon followed. These actions isolated youths' interests in the popular media of the times, and separated young people from their contemporary adult labor counterparts. This separation continued through the 1930s, when the American Youth Congress presented a "Bill of Youth Rights" to the US Congress. Their actions were indicative of a growing student movement present throughout the US from the 1920s through the early 1940s. The 1950s saw the Student Nonviolent Coordinating Committee bring young people into larger movements for civil rights. All the way back in 1959, Rev. Dr. Martin Luther King, Jr. engaged youth activists in protesting against Bull Connor's racist law enforcement practices in Birmingham, Alabama. The youth activism of Tom Hayden, Keith Hefner and other 1960s youth laid a powerful precedent for modern youth activism. John Holt, Myles Horton and Paulo Freire were important in this period. Youthful life and expression defined this era.

Example Output: b

Example Input: Question: Has the maple leaf been used on any other coat of arms or country flags besides in Canada? Passage:The maple leaf has been used as a Canadian emblem since the 18th century. It was first used as a national symbol in 1868 when it appeared on the coat of arms of both Ontario and Quebec. In 1867, Alexander Muir composed the patriotic song "The Maple Leaf Forever", which became an unofficial anthem in English-speaking Canada. The maple leaf was later added to the Canadian coat of arms in 1921. From 1876 until 1901, the leaf appeared on all Canadian coins and remained on the penny after 1901. The use of the maple leaf by the Royal Canadian Regiment as a regimental symbol extended back to 1860. During the First World War and Second World War, badges of the Canadian Forces were often based on a maple leaf design. The maple leaf would eventually adorn the tombstones of Canadian military graves.

Example Output: b

Example Input: Question: What is the population of the city where Schchapov earned his bachelor's degree? Passage:Afanasiy Shchapov was born in the village of Anga some 210 miles from Irkutsk, into a family of a Russian sexton and Buryat woman. Educated in Irkutsk, he moved to Kazan and became a student at Kazan Theological Academy (18521856). Upon receiving his Bachelor's degree, Shchapov began to deliver lectures on Russian history at his alma mater (18561860) and later at Kazan University (18601861). He also studied the Solovetsky Monastery library, which had been evacuated during the Crimean War to Kazan. Fascinated with the Solovetsky Uprising, Shchapov started writing articles about the Raskol and Old Believers. On April 16, 1861, he delivered a revolutionary speech dedicated to the victims of the Bezdna Unrest, after which he was arrested and escorted to St.Petersburg. After the investigation, Shchapov was dismissed as a teacher and appointed to the Ministry of the Interior as an official in charge of the sectarian affairs. In 1862, he was discharged and placed under police surveillance.

Example Output:
b