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 theatre was built first, the one Gregario appeared at in 1988, or the one she appeared at in 1993? Passage:In 1977, Gregorio returned to Broadway after an eight-year hiatus in the original production of Michael Cristofer's The Shadow Box as Agnes; she garnered nominations for the Tony Award for Best Performance by a Featured Actress in a Play and the Drama Desk Award for Outstanding Featured Actress in a Play. Since then her theatre appearances have been sporadic. She appeared as Laurie in the Off-Broadway production of David Blomquist's Weekends Like Other People, at the Marymount Manhattan Theatre in 1982. The following year she returned to Broadway as Beatrice in the original production of A View from the Bridge at the Ambassador Theatre, and again in 1988 as Helga in the original production of M. Butterfly at the Eugene O'Neill Theatre. In 1993 she appeared as Karen Frick in the Manhattan Theatre Club's production of Arthur Miller's The Last Yankee and in 2000 she portrayed the roles of Lena and Sandra in Beth Henley's Family Week at the Century Center for the Performing Arts.

Example Output: b

Example Input: Question: What does UNESCO stand for? Passage:Wyndham devoted much of his life to public service outside of his role in the Department of Education. In 1945 he led the Australian delegation at the conference which created UNESCO and was a member of the Australian delegation to UNESCO in 1958 and again in 1966. In 1959 he represented Australia at the Commonwealth Education Conference at Oxford and again in New Delhi in 1962. He was a Fellow of the Royal Institute of Public Administration and a Fellow and President (19631965) of the Australian College of Educators. He was Chairman of the NSW State Library Board, NSW State Archives Authority, Secondary Schools Board, Board of Senior School Studies, Board of Teacher Education, Sydney Symphony Orchestra Advisory Committee and Intellectually Handicapped Standing Committee amongst others. He was a member of the Senate of the University of Sydney, Council of the University of New South Wales, Council of the University of New England, Council of Macquarie University, Technical Education Advisory Council and the Sydney Opera House Trust. In 1961 Wyndham was appointed a Commander of the Order of the British Empire for services to education in NSW and in 1969 appointed a Knight Bachelor.

Example Output: b

Example Input: Question: How many horses did Kinghaven Farms own when Alydeed won the Derby Trial? Passage:Alydeed was owned and raced by David Willmot's Kinghaven Farms. Racing from a base at Woodbine Racetrack in Toronto, at age two his best performances were wins in an allowance race at Gulfstream Park in Florida, where he equalled the track record for 6.5 furlongs, and a win in Woodbine's Victoria Stakes. At age three, Alydeed won five of his ten starts. Near the end of April 1992, he was sent to Churchill Downs in Louisville, Kentucky where he won the Derby Trial. Based on his strong performance, his handlers decided to run him in the second leg of the U.S. Triple Crown series, the Preakness Stakes where he ran second to Pine Bluff. Back at Woodbine Racetrack, he won the Plate Trial Stakes then ran away from the field in the final quarter of a mile to win Canada's most prestigious race, the Queen's Plate. In the second leg of the Canadian Triple Crown series, the Prince of Wales Stakes, Alydeed was sent off as the prohibitive favorite at 1/9 odds. However, on a muddy Fort Erie Racetrack, Alydeed ran second to Benburb. Alydeed then elected to skip the third jewel of the Canadian Triple Crown opting for the Grade 1 Travers Stakes at Saratoga Race Course where he finished eighth to Thunder Rumble as the 8-5 favourite.

Example Output:
a