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.

Ex Input:
Question: How many Boy Wonder's have there been? Passage:Besides the aforementioned death of Stephanie Brown, many other side effects came about from this event. The biggest of these included Black Mask becoming the single crime boss in Gotham, something that would remain until his death at the hands of Catwoman. Another would be Commissioner Akins effectively making all vigilantes criminals, a move that would stay in place for over a year until the return of Commissioner Gordon to the Gotham City Police Department. The more controversial effect, not seen until the follow-up story War Crimes, was turning Doctor Leslie Thompkins against Batman, when she allows Stephanie Brown to die from her wounds as Batman's "punishment" for including children in his war on crime. Jason Todd, a former Boy Wonder, confirmed to be alive on  as a violent vigilante the Red Hood who waged a one-man war against Black Mask and successfully crippling his criminal operation in the city before seeking revenge towards Batman and the Joker. Finally, the citizens of Gotham City no longer consider Batman to be an urban legend (which has been in place since Zero Hour), as he was caught on camera trying to save the life of a wounded student at the end of Act One. Additionally, Barbara Gordon lost the clock tower that served as her home and headquarters and left Gotham City, eventually moving to Metropolis. She would later re-establish her ties to Batman.


Ex Output:
b


Ex Input:
Question: Who were the crew members on the flight to the moon in 1972? Passage: are three views of Mare Tranquillitatis on the Moon, taken by the mapping camera of the Apollo 17 mission in 1972, facing south-southwest from an average altitude of 111 km on Revolution 36 of the mission. At the left is the east side of Mare Tranquillitatis, with the craters Franz (bottom right), Lyell (dark floor, right of center), and Taruntius (upper left). The "bay" of dark mare (basalt) at left is Sinus Concordiae, with "islands" of older, light highland material. At the right is the crater Cauchy, which lies between the Rupes Cauchy and Cauchy rille. The center photo shows the central mare with craters Vitruvius (lower right) and Gardner (bottom center). At the horizon are lighter highlands at the southern margin of the mare, near the Apollo 11 landing site. The crater Jansen is visible at the edges of both the center and right photos. The right photo shows the western mare, with the craters Dawes (lower left) and the large Plinius (43 km diameter), with the Plinius Rilles in the foreground. These photos were taken within minutes of each other as the command module America orbited the Moon. The Sun elevation drops from 46 degrees at left to 30 degrees at right.


Ex Output:
b


Ex Input:
Question: How ling had the United States been a country when Danish emigrated there? Passage:He adopted "Danish" as his Takhallus (pen-name). Bachay, Titli, Phool, his first collection of poems, was published in 1997. He quickly garnered recognition for the anger he expressed through his works, in which he often made reference to his experiences as a member of the African diaspora; his work attracted the attention of leading Urdu critic Shamsur Rahman Farooqi, who had them published in Indian literary journal Shabkhoon. In 2000, he emigrated to the United States; he had remarked to a friend that he would prefer to be "a third class citizen of a first class country than a first class citizen of a third class country," but put off going through the procedures for almost two years due to his ambivalence about leaving his home. He first took up residence in the Kew Gardens neighborhood of Queens, New York City; he chose it because of its diversity, which helped him to feel less of a stranger as well as affording him the opportunity to study others' cultures. At first, he could only find job as a security guard, but he eventually joined the faculty of New York University; he later moved to the University of Maryland as a language consultant.


Ex Output:

b