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: 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: Is the school that house the Christ Church initially as a chapel still in existence? Passage:Christ Church was built between 1855 and 1857 to a design by the London architect Henry Martin. It was built as a chapel for Lancaster Grammar School and the local workhouse. The church was paid for and endowed by Samuel Gregson, a local industrialist and MP. In 1889 a south aisle was added, designed by the local architects Paley and Austin. It provided 152 seats, and cost about £1,000. In 1894–95 a west baptistry was added by the same practice, then known as Paley, Austin and Paley. The same practice (by now Austin and Paley) converted the organ chamber into the Storey chapel, the organ having been moved into the south transept. In 1919 a war memorial was installed in the churchyard. It was in Derbyshire stone, high, and cost £400. This was designed by Henry Paley, then trading as Austin, Paley and Austin.

Example Output: b

Example Input: Question: How old is the city in which Jackson Plantation resides? Passage:Tennessee Colony was established in 1847 by settlers from Tennessee and Alabama, who named their settlement for one of their home states. The first settlers who settled in the community had the last names Shelton, Avant, Hank, and Seagler. The community's fertile soil and moist climate made it feasible to grow cotton, and several plantations were established, including the Jackson Plantation, which, at one time, was one of the largest plantations in East Texas. They were extremely successful. A post office was established at Tennessee Colony in 1852. Before the Civil War, as well as after, the community fell victim to racial tensions. Two white men from Mississippi named Cable and Wyrick were accused of plotting a slave uprising in 1860, in which they encouraged slaves to kill most of the community's white residents by poisoning the water supply in the settlement. They were tried and hanged soon after. The nearby city of Palestine had the community's first railroad built there. As of 1884 Tennessee Colony boasted a population of 200 and three churches, a steam-powered gristmill, and a cotton gin. As the community's businesses moved to the nearby city of Palestine, the community's population plummeted over the next few decades. There were a few grocers and cotton gins in the area, and it eventually received a telephone connection. It functioned as a small cultural port in the 20th century. The population declined to just 100 people by 1914, rose again to 300 in 1927, but again declined during the 1930s. In 1941 there were 150 people in Tennessee Colony. A total of 21,000 acres of land was purchased just southwest of the settlement by the Texas Department of Corrections in 1965, and the first medium security prison facility named the Coffield Unit was built in the community and held approximately 2,000 prisoners. It reached its population zenith of 400 by that year. Then the Beto Unit, the community's second prison, was finished in 1984. There were factories built for fabricating metal, as well as building concrete blocks and highway signs, in these prison facilities. It also had thriving agricultural and livestock operations. It had a steady population of 120 from the 1970s to 1990. It had a population of 300 in 2000. It currently has two historical markers, with one honoring the community, and the other commemorating the community's cemetery.

Example Output:
a