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.

Ex Input:
Question: What golf course is the British Ladies Amateur played? Passage:A 1966 graduate of Miss Porter's School and a 1970 graduate of Hollins University in Roanoke, Virginia, she defeated Anne Quast to win the 1973 U.S. Women's Amateur at the Montclair Golf Club in Montclair, New Jersey. Semple won the 1974 British Ladies Amateur. At present, she is one of only eleven golfers to hold both titles. In defense of her U.S. championship, she made it to the 1974 finals but lost to Cynthia Hill. Among her other significant victories in amateur play, she won the 1976 and 1987 North and South Women's Amateur, two U.S. Women's Mid-Amateurs, and won the U.S. Senior Women's Amateur four years in a row from 1999 to 2002. She also was part of the American team that won four Espirito Santo Trophys at the World Amateur Golf Team Championships. She is also one of only five people to have won three different USGA individual championship events, the others being JoAnne Carner, Jack Nicklaus, Arnold Palmer, and Tiger Woods.


Ex Output:
a


Ex Input:
Question: Who is in charge of the city Couceiro arrived in in 1889? Passage:Paiva Couceiro arrived in Luanda, Angola on September 1, 1889, and was immediately appointed commander of the Irregular Cavalry Squadron in the village of Humpata (which was originally created by Artur de Paiva to combat bands of guerrillas along the plain of Moçâmedes). He did not remain at this outpost for long; apparently he was unsatisfied with his subordinates, their methods and inferior level of discipline, but was able to utilize them in a campaign to retrieve missing cattle, instead of hiring local Boer mercenaries, which had been the custom. By January he was in the village of Belmonte, in Bié, on a mission that would take him along the Cuando River, to Cuito and then to the Lialui along the Zambezi River (a trek of thousands of kilometers across savannah), in order to negotiate with Lewanika, chief of the Barotze tribe. The growth of the Portuguese occupation force in the Angolan interior was part of the administration's attempted to implement their Pink Map to explore and expand their serfdom over the peoples of the central-African interior. After some resistance, the colonial administration began a military campaign to pacify groups that had resisted initial token gestures of friendship and gifts, a process that Paiva Couceiro participated in energetically. For the chief's recognition of Portuguese sovereignty over his territories, Paiva Couceiro brought with him a colonels tunic and sword, textiles, gold, velvet, boxes of Porto wine and arms, which were to be delivered in 300 crates when the Governor of Angola canceled the project.


Ex Output:
a


Ex Input:
Question: What year was the battle of the Gap? Passage:After the D-Day invasion, was reassigned to IX Tactical Air Command (IX TAC) and directed to provide ground support for advancing United States First Army forces in France, attacking enemy targets initially in the Cotentin Peninsula, then supported Operation Cobra, the breakout of Normandy and attacked enemy forces in the Falaise-Argentan Gap. Wing headquarters and subordinate units operated primarily from liberated airfields and newly built temporary Advanced Landing Grounds in France, moved into north-central France, its groups attacking enemy targets near Paris then north-west into Belgium and the southern Netherlands. In December 1944/January 1945, engaged enemy targets on the north side of the Battle of the Bulge, then moved eastward into the Northern Rhineland as part of the Western Allied invasion of Germany.


Ex Output:

b


