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: How many viruses are recognized as the type of virus that poliovirus is? Passage:Poliovirus is an enterovirus. Infection occurs via the fecal–oral route, meaning that one ingests the virus and viral replication occurs in the alimentary tract. Virus is shed in the feces of infected individuals. In 95% of cases only a primary, transient presence of viremia (virus in the bloodstream) occurs, and the poliovirus infection is asymptomatic. In about 5% of cases, the virus spreads and replicates in other sites such as brown fat, reticuloendothelial tissue, and muscle. The sustained viral replication causes secondary viremia and leads to the development of minor symptoms such as fever, headache, and sore throat. Paralytic poliomyelitis occurs in less than 1% of poliovirus infections. Paralytic disease occurs when the virus enters the central nervous system (CNS) and replicates in motor neurons within the spinal cord, brain stem, or motor cortex, resulting in the selective destruction of motor neurons leading to temporary or permanent paralysis. In rare cases, paralytic poliomyelitis leads to respiratory arrest and death. In cases of paralytic disease, muscle pain and spasms are frequently observed prior to onset of weakness and paralysis. Paralysis typically persists from days to weeks prior to recovery.

Example Output: b

Example Input: Question: What year did New Netherland become New York? Passage:In the early seventeenth century, individual Danish immigrants became established in North America. Scandinavians—Danes and Norwegians in particular—made up a large portion of the settlers in the Dutch colony of New Netherland, now New York. After 1750, Danish families in the Protestant Moravian Brethren denomination immigrated to Pennsylvania, where they settled in the Bethlehem area alongside German Moravians. Until 1850, most Danes who emigrated to North America were unmarried men. During this period, some Danes achieved notability and recognition. Among them were Hans Christian Febiger (1749–1796), one of George Washington's most trusted officers during the American Revolution, Charles Zanco (1808–1836) who died at the Alamo in March 1836 in the struggle for Texan independence, and Peter Lassen (1800–1859), a blacksmith from Copenhagen who led a group of adventurers from Missouri to California in 1839. The trail established by Lassen was followed by the "forty-niners" during the California Gold Rush. Lassen is considered one of the most important early settlers of California.

Example Output: b

Example Input: Question: How old was the governor when Rosas was overthrown? Passage:The central figure in the overthrow of Rosas, Entre Ríos Governor Justo José de Urquiza, was granted the power of a head of state by the Palermo Protocols of April 6, 1852. This provoked resistance in Buenos Aires, however, which then refused to ratify the San Nicolás Agreement of May 31. The prospect of having the Argentine Congress headquartered in Santa Fe proved especially objectionable, and Urquiza's June 12 appointment of former President Vicente López y Planes failed to turn public opinion in Buenos Aires. Colonel Bartolomé Mitre rallied the Assembly against the San Nicolás Accords. The most contentious issue remained the Buenos Aires Customs, which remained under the control of the city government and was the chief source of public revenue. Nations with which the Confederation maintained foreign relations, moreover, kept all embassies in Buenos Aires (rather than in the capital, Paraná).

Example Output:
b