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 weeks did the single that peaked at number nine spend on the charts? Passage:"Go Girl" was the first single released from the album. It was originally the lead single from the album, but the single achieved minimum success and was later deemed a promo single. However, the single managed to reach the top of the charts in Japan. The album's official lead single, "Never Ever", which features Young Jeezy, was released in the United States in January 2009 and reached a peak of number nine on the U.S. Hot R&B/Hip-Hop Songs. The second single, "Love Sex Magic", featuring Justin Timberlake, became a worldwide hit, peaking within the top ten in twenty countries including the U.S., where it peaked at number ten on the Billboard Hot 100. It went on to be certified platinum in Australia and received a gold accreditation in New Zealand. It received a nomination for "Best Pop Collaboration with Vocals" at the 52nd Annual Grammy Awards and also for Best Choreography in a Video at the 2009 MTV Video Music Awards. "Like A Surgeon" was the fourth single from the album. The song received no promotion and no single cover nor music video was released. However, the song did manage to peak at number fifty-nine on the Hot R&B/Hip-Hop Songs chart from airplay alone. "Work", the final single, achieved moderate success in international markets.

Example Output: b

Example Input: Question: In what city did S. Krishnaswami study in 1974? Passage:S. Krishnaswami, born on 21 May 1945 in Thiruvananthapuram, in the south Indian state of Kerala, did his graduate studies in science at the University College, Thiruvanathapuram of the University of Kerala and on completion of the degree in 1963, he joined Bhabha Atomic Research Centre Training School for a short term training. Subsequently, he joined the Geophysics group of Tata Institute of Fundamental Research as a research associate in 1964 where he stayed till 1972. Simultaneously, he enrolled at Bombay University and secured a PhD in 1974, working under the guidance of Devendra Lal. His post-doctoral researches were at Scripps Institution of Oceanography with Harmon Craig and at the laboratory of K. K. Turekian of Yale University. By this time, he had already moved to Physical Research Laboratory (PRL), Ahmedabad in 1973 and on returning to India, he spent the rest of his career there, superannuating from service in 2005. He held various positions during his tenure at PRL such as that of a Dean from 1987 to 1993 and Acting Director during 200405 and continued his association with the laboratory post-retirement as an INSA scientist and honorary professor. He also served as a visiting scientist at Scripps Institute of Oceanography (197172) and as a visiting faculty at the Department of Geology and Geophysics of Yale University for two stints during 197677 and 198687.

Example Output: a

Example Input: Question: In what city did the group of artists painting in Bamboccio's manner operate? Passage:Pieter van Laer (1599 c. 1642) was a Dutch Golden Age painter of genre scenes, active for over a decade in Rome, where his nickname was Il Bamboccio. Artists working in his style, who often painted just such scenes of everyday life as Pliny lists, became known as the Bamboccianti, painters in Bamboccio's manner. Peiraikos is often mentioned in the controversies over the Bamboccianti, for example by Salvator Rosa in his Satires, and later by the Dutch biographer of artists, Samuel Dirksz van Hoogstraten in his Inleyding tot de Hooge Schoole der Schilderkonst (Introduction to the Academy of Painting), Rotterdam 1678. As genre painting became an important element of Dutch Golden Age painting, Peiraikos was used to provide classical precedent for such work, in the relatively few discussions of the appropriateness of such art by Karel van Mander in his Schilder-boeck (1604) and Arnold Houbraken in his The Great Theatre of Dutch Painters (17181719). Having originally been often rather cheap, by the late 17th century the best Dutch genre scenes became sought after by collectors across Europe at very high prices, a development following Pliny's account of Peiraikos that was bemoaned by Lessing in his Laocoon (1763), mentioning Dutch painting specifically.

Example Output:
b