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: What is the location of the headquarters for the company Bremer Broadcasting sold its station to in 1957? Passage:On October 6, 1957, Bremer Broadcasting announced it had sold its stations for $3.5 million to National Telefilm Associates (NTA), an early distributor of motion pictures for television, joining its NTA Film Network. On May 7, 1958, channel 13's call sign was changed to WNTA-TV to reflect the new ownership; the radio stations also adopted these call letters. NTA's cash resources enabled WNTA-TV to produce a schedule of programming with greater emphasis on the people and events of New Jersey, compared to the other commercial television stations. NTA also sought to make channel 13 the center of a new commercial network, though during its run the NTA Film Network offered only one night of "in-pattern" network programming, Friday nights in 195758, and for most purposes WNTA served as the New York showcase for nationally syndicated programming and produced several such entries, notably the anthology drama series Play of the Week; the talk show Open End, hosted by David Susskind; children's show The Magic Clown; and a popular dance program emceed by Clay Cole. The station continued to lag behind New York's other independent stationsWNEW-TV (channel 5), WOR-TV (channel 9) and WPIX (channel 11)in terms of audience size, and NTA incurred a large debt load. National Telefilm Associates put the WNTA stations up for sale in February 1961.

Example Output: b

Example Input: Question: How old was the person who chaired the AUKcon convention held in February 1994 in London? Passage:AUKcon was a one-day anime convention held in London, England, on 19 February 1994. The venue was the Conway Hall (Red Lion Square), and the registration charge was 10. AUKCon was chaired by Helen McCarthy. During the convention, Lawrence Guinness of Manga Video announced that the company had acquired distribution rights for Ranma 1/2 and planned to start releasing it in 1994. Also announced included plans for the series Bio Booster Armor Guyver. One of the guests that attended was Toren Smith, writer of the American Dirty Pair comic and founder of Studio Proteus. The convention was the first UK anime event to provide a fan room with free space for fanzines and fanclubs. It also ran a gaming programme and an art and model show, as well as anime screenings and talks.

Example Output: b

Example Input: Question: Which of the univerisities where Cioculescu held teaching positions in Romanian literature has the highest student enrollment? Passage:Serban Cioculescu (; 7 September 1902 25 June 1988) was a Romanian literary critic, literary historian and columnist, who held teaching positions in Romanian literature at the University of Iasi and the University of Bucharest, as well as membership of the Romanian Academy and chairmanship of its Library. Often described as one of the most representative Romanian critics of the interwar period, he took part in the cultural debates of the age, and, as a left-wing sympathizer who supported secularism, was involved in extended polemics with the traditionalist, far right and nationalist press venues. From early on in his career, Cioculescu was also noted for his selective approach to literary modernism and the avant-garde, preferring to place his cultural references with Neoclassicism.

Example Output:
a