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: Who was the manager of Manchester United when Duncan Edwards died as a result of the Munich air disaster? Passage:The most famous former resident of the Priory Estate is Duncan Edwards, who was born two miles away at Holly Hall but moved to 31 Elm Road as a small child and went on to play 18 times for England as well as winning two Football League championships with Manchester United before he died in 1958 at the age of 21 from injuries sustained in the Munich air disaster. As a child, he had attended Priory Primary School and then Wolverhampton Street School. The school is most famous for being the former school (1941 to 1948) of the late Duncan Edwards, the former Manchester United and England footballer. He died aged 21 as a result of the Munich air disaster in 1958. After his death, a stained glass window was dedicated to Edwards at St Francis parish church at the junction of Laurel Road and Poplar Crescent. The church was founded during 1931 and originally based at Priory Hall before the church building on the newly developed housing estate was opened on 10 May 1932.

Example Output: b

Example Input: Question: Which city was larger the year Cowan was born, Braeholm or Los Angeles? Passage:Charles Edward Cowan (June 19, 1938 in Braeholm, West Virginia April 29, 1998 in Los Angeles, California) was an American football offensive tackle who played fifteen seasons in the National Football League with the Los Angeles Rams from 1961 to 1975. Cowan was a huge intimidating presence on the left of Tom Mack, a member of the Pro Football Hall of Fame, from 1966 to 1975, forming a potent left side of the offensive line, with help from Ken Iman at center from 1965 to 1975. In that 1961 to 1975 span, the Rams made the playoffs 5 times (1967,1969,1973,1974,1975), reaching the NFC championship game of the 1974-75 NFL playoffs and the 1975-76 NFL playoffs, but losing to the Minnesota Vikings and to the Dallas Cowboys, respectively. In the 1974 divisional round, the Rams defeated the Washington Redskins, as Cowan was successful against the opposing the right defensive end Verlon Biggs. In the 1975 divisional round, Doug France started in his place as the Rams defeated the St. Louis Cardinals. Cowan came back to play against the Cowboys, his final game, as the Rams could not get past them. Cowan was replaced by Doug France in 1976.

Example Output: a

Example Input: Question: Of the singers Alejandro Fernandez recorded "Puedes llegar"with, who has sold the most albums? Passage:In 1996, his release Muy Dentro de Mi Corazon was an instant success. Songs like "Mono negro", "Nube viajera" and "Abrazame" became hits in Mexico and several countries of Latin America. That same year he recorded "Puedes llegar", theme song for the 1996 Atlanta Olympics, with singers Gloria Estefan, Jon Secada and Ricky Martin among others. In 1997, he recorded the album Me Estoy Enamorando, produced by Emilio Estefan, Jr. The music of the album is a fusion of bolero, romantic ballad, orchestral arrangements and a touch of Mexican mariachi that became popular in the Latin music sector. "Si Tu Supieras" was the most outstanding hit of that production, and it was chosen as the theme of the hit soap opera of the time, "Maria Isabel". It also conquered the U.S. market, lasting seven weeks at the top of Billboard Hot Latin Tracks. He became the first Latin singer to hold first place with three hits: "Si tu supieras" was followed by "En El Jardin" (with Gloria Estefan) and "No Se Olvidar". Me Estoy Enamorando sold 2.2 million copies worldwide and was nominated for Best Latin Pop Performance at the 40th Annual Grammy Awards. In December 1998, he recorded Christmas in Vienna VI with the tenor Placido Domingo and Patricia Kaas. His performance was praised by the critics but it did not achieve much popularity among the audience.

Example Output:
a