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 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: 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: Who was the commander of Maroubra Force? Passage:The Invasion of Buna–Gona, called Operation RI by the Japanese, was a military operation by Imperial Japanese forces to occupy the Buna–Gona area in the Territory of Papua during the Pacific campaign of the Second World War. The initial landings and advance on Kokoda occurred between 21 and 27 July 1942. The Japanese invaded and occupied the location in preparation for an overland attack on Port Moresby along the Kokoda Track. The landing marked the start of the Kokoda Track campaign. The landings were not directly opposed by land forces but were engaged by elements of Maroubra Force as they advanced on Kokoda. This initially included B Company of the 39th Battalion, patrols of the Papuan Infantry Battalion (PIB) operating in the area and a small number of the Australian New Guinea Administrative Unit (ANGAU) that became attached to the force. The Australians were initially repulsed near Oivi but subsequently regrouped to defend Kokoda in an initial battle there from 28–29 July.

Example Output:
b