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: Which team won more games the year Cowan started with the Rams, the Vikings or the Cowboys? 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: What role did Raju play in the Tollywood industrial hit? Passage:In 1984, Krishnam Raju acted in Yuddham, Sardar, Babulugaadi Debba, Kondaveeti Nagulu and S. P. Bhayankar. Later, he acted in the Tollywood industrial hit Bobbili Brahmanna which earned him Filmfare Best Actor Award (Telugu) and Nandi Award for Best Actor. He also remade the film in Hindi as Dharm Adhikari with Dilip Kumar and Jeetendra in 1986. Later, he acted in films such as Raraju, Bharatamlo Shankaravam, Rowdy, Bandee, Tirugubatu, Aggi Raju, Bullet, Ukku Manishi, Ravana Brahma, Neti Yugadharmam and Ugra Narasimham. In 1986, he acted in Tandra Paparayudu portraying the role of Tandra Paparayudu which earned him Filmfare Best Actor Award for the year 1986. The film was premiered at the 11th International Film Festival of India. Later, he acted in films such as Brahma Nayudu, Sardar Dharmanna and Marana Shasanam which earned him Filmfare Best Actor Award for the year 1987. In 1987, he acted in Vishwanatha Nayakudu portraying the role of Srikrishnadevaraya. Later, he acted in films such as Maarana Homam, Kirai Dada, Maa Inti Maha Raju, Antima Teerpu, Prithvi Raj, Prachanda Bharatam, Dharma Teja, Prana Snehitulu, Simha Swapnam, Shri Ramachandrudu, Bhagawan, Two Town Rowdy, Yama Dharma Raju and Neti Siddhartha.

Example Output: b

Example Input: Question: How many times did Kathryn Day perform at the Metropolitan Opera House? Passage:Born in Philadelphia, Day studied at the Jacobs School of Music at Indiana University and at the Curtis Institute of Music where she was a pupil of Margaret Harshaw. She placed third in the finals of the Metropolitan Opera National Council Auditions in 1973, which led to her debut performance at the Metropolitan Opera House on March 25, 1973 singing "Come scoglio" from Così fan tutte and "Song to the Moon" from Rusalka. She made her professional opera debut in 1972 with the Pennsylvania Opera Company as Violetta in La traviata. That same year she was the soprano soloist in Verdi's Requiem with the Mendelssohn Club. In 1973 she portrayed Mimi in La bohème and Violetta with the Little Lyric Opera Company in Philadelphia. In 1974 she made her debut with the Philadelphia Lyric Opera Company as Nella in Gianni Schicchi.

Example Output:
a