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: Which of Shapovalov's opponents at Gatineau and Drummondville was younger? Passage:In March in Gatineau, Shapovalov captured his fourth ITF Futures singles title after defeating Gleb Sakharov in straight sets. Two weeks later, he won his first ATP Challenger title with a victory over Ruben Bemelmans at the 75K in Drummondville, and was the youngest Canadian to win a Challenger until Félix Auger-Aliassime's victory at the Open Sopra Steria de Lyon later in the year. The next week, he was defeated by Mirza Bašić in the final of the ATP Challenger 50K in Guadalajara, stopping his winning streak at 17 matches. At the French Open in May, his first professional Grand Slam, he was defeated in the first round of qualifying by the first seed Marius Copil in three sets. In June, Shapovalov qualified for the ATP 500 at the Queen's Club Championships, his fourth ATP main draw but his first as a qualifier. In the first round, he defeated his second top 50 player, world No. 47 Kyle Edmund, before losing to world No. 14 Tomáš Berdych. At Wimbledon in July, Shapovalov was awarded a wild card for the main draw. He was defeated by Jerzy Janowicz in the opening round. At the end of the month, he won his second ATP Challenger title, defeating compatriot Peter Polansky in the final of the 75K in Gatineau.

Example Output: b

Example Input: Question: How old was Sourav Ganguly the year Bengal won its first Vijay Hazare Trophy? Passage:He was by far the brightest performer as Bengal (captained by Sourav Ganguly) won its first Vijay Hazare Trophy in 2012. In the group stage match against Jharkhand at Eden Gardens, he scored 151* from 96 balls (16 fours, 8 sixes) to chase down Jharkhand's score of 280/6 in just 38.1 overs. In the next match against Tripura at the Jadavpur University Sports Complex, after being bowled out to only 198 in 49 overs, he took 4/37 (and Sanjib Sanyal took 4/33 from his 8 overs) to bowl out Tripura for just 168 in 37.4 overs. In the quarter final, he took 2/37 against Madhya Pradesh. He took the wicket of Punjab's highest scorer Mandeep Singh (66) in the semifinal. In the final against Mumbai led by Ajit Agarkar, he took 4/38 (including openers Wasim Jaffer and Ajinkya Rahane) to bowl out Mumbai for only 248, and then chased it down with a 107* off 83 ball-partnership with Anustup Majumdar. He scored 106* from 90 balls, and Anustup Majumdar scored 50* from 45 balls to win the Vijay Hazare Trophy with 23 balls to spare.

Example Output:
b