In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Example Input: Question: When was the museum ship in Halifax first opened? Passage:The city is overlooked by a large museum and national historic site, the Halifax Citadel not far from the province's Natural History Museum. The Maritime Museum of the Atlantic, the oldest and largest maritime museum in Canada explores the cultural and technology of the province's seafaring heritage. Moored beside the Maritime Museum is the museum ship HMCS Sackville, Canada's naval memorial. The city's rich naval history is also presented at the Maritime Command Museum in the city's North End. The Pier 21 Immigration Museum located a former ocean liner immigration shed features Canada's immigration history. Across the harbour, the Dartmouth Heritage Museum preserves the history of the Dartmouth side of the Harbour. The Black Cultural Centre for Nova Scotia in Cherrybrook celebrates the history and culture of African Nova Scotians. A variety of community museums across the municipality showcase community history such as the Fultz House Museum in Sackville and the Musquodoboit Railway Museum in Musquodoboit Harbour. Two aviation museums are located in Halifax; the Atlantic Aviation Museum near the Halifax International Airport and the Shearwater Aviation Museum in Eastern Passage.

Example Output: b

Example Input: Question: Has He Zhuoyan's co-star in Royal Tramp had any children? Passage:She was educated at the Hangzhou Arts School. She started her career by participating in the Hangzhou Super Girl singing contest in 2005, winning the sixth position among the top ten finalists. The following year, she participated in the Chinese Yahoo Three Directors Star Search programme () and emerged as champion of the Zhang Jizhong category. She signed on with the talent agency Huayi Brothers and started acting in period and wuxia-themed television series produced by Zhang Jizhong. She is best known for her role as one of Wei Xiaobao's seven wives, Shuang'er, in Royal Tramp, a 2008 television series based on Louis Cha's novel The Deer and the Cauldron. She has also attained recognition for her role as Wang Yanyu in Paladins in Troubled Times, an adaptation of Liang Yusheng's novel Datang Youxia Zhuan, and as Moli in Bing Sheng, a television series featuring a fictionalised life story of the ancient Chinese militarist Sun Tzu. She has also served as a spokeswoman and endorser for cosmetic and shampoo product brands, as well as appearing in the Chinese Yahoo television commercial Qianshi Jinsheng Pian () together with Huang Xiaoming, her co-star in Royal Tramp.

Example Output: b

Example Input: Question: Who succeeded Winston Churchill in the position he held in 1944? Passage:In June 1943, the head of the British Special Operations Executive mission in Greece, Brigadier Eddie Myers, conceived the Agreement of National Groups. Under the terms of the agreement, ELAS and the right-wing EDES and EKKA, united under a common general staff consisting of Myers and the leaders of the units, while also accepting the seniority of the British Middle East Command (General Henry Maitland Wilson). The accord was to pave the way for Operation Animals, part of Operation Barclay, a plan to deceive the Axis powers into believing that the Allied invasion of southern Europe would be in Greece and not Sicily. In late 1942, with on-going Allied success in the North African Campaign, the thoughts of the military planners turned to the next target. British planners considered that an invasion of France from Britain could not take place until 1944, and the Prime Minister, Winston Churchill, wanted to use the Allied forces from North Africa to attack Europe's "soft underbelly". There were two possible targets for the Allies to attack. The first option was Sicily; control of the island would open the Mediterranean Sea to Allied shipping and allow the invasion of continental Europe through Italy. The second option was into Greece and the Balkans, to trap the German forces present between the British and American invaders and the Soviets. At the Casablanca Conference in January 1943 Allied planners agreed on the selection of Sicily – codenamed Operation Husky – and decided to undertake the invasion no later than July that year. There was concern among the Allied planners that Sicily was an obvious choice – Churchill is reputed to have said "Everyone but a bloody fool would know that it's Sicily" – and that the build-up of resources for the invasion would be detected.

Example Output:
a