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.

Ex Input:
Question: Did the highest scoring fighter ace have any siblings? Passage:After a short rest, the 90th continued across the Moselle River to take Mainz, 22 March, and crossed the rivers Rhine, the Main, and the Werra in rapid succession. Pursuit continued to the Czech border, 18 April 1945, and into the Sudetes mountain range. The division was en route to Prague when they came upon the remaining 1500 emaciated prisoners left behind by the SS at Flossenbürg concentration camp. Today, a memorial wall at the former camp honors the 90th as the liberators of Flossenbürg concentration camp. A week later, word came that the war in Europe ended on 8 May 1945. On that same day, Erich Hartmann, the highest-scoring fighter ace in history, along with a squadron of the elite Jagdgeschwader 52 fighter wing (the highest-scoring fighter wing in history), surrendered to the 90th.


Ex Output:
b


Ex Input:
Question: Who was the leader of the English Catholics? Passage:The early modern period in Britain saw religious conflict resulting from the Reformation and the recusancy that emerged in opposition to it. The Gunpowder Plot of 1605 was a failed attempt by a group of English Catholics to assassinate the Protestant King James I, and to blow up the Palace of Westminster, the English seat of government. Although the modern concept of religious terrorism, or indeed terrorism at all, had not yet come into use in the seventeenth century, David C. Rapoport and Lindsay Clutterbuck point out that the Plot, with its use of explosives, was an early precursor of nineteenth century anarchist terrorism. Sue Mahan and Pamala L. Griset classify the plot as an act of religious terrorism, writing that "Fawkes and his colleagues justified their actions in terms of religion." Peter Steinfels also characterizes this plot as a notable case of religious terrorism.


Ex Output:
b


Ex Input:
Question: Was the Tacoma Narrows Bridge operational the year Thomson returned to Seattle to work on the Diablo Dam? Passage:From 1916 to 1922, Thomson served on the Seattle city council, while continuing to work as a civil engineer. After leaving the council, he continued working various places in the Pacific Northwest and Alaska. He consulted on Oregon's Rogue River Valley Irrigation Canal; built hydroelectric plants in Eugene, Oregon and surveyed plant sites in Southeastern Alaska; planned the water supply of Bellingham, Washington and consulted on the system for Wenatchee; briefly, in his seventies, he returned, temporarily, as Seattle city engineer in 1930 to finish the Diablo Dam on the Skagit River after the death of city engineer William D. Barkhuff; consulted to the Inter-County River Improvement Commission for King and Pierce Counties (the counties containing Seattle and Tacoma, respectively), and consulted on the construction of the Lake Washington Floating Bridge (now Lacey V. Murrow Memorial Bridge, carrying Interstate 90 across Lake Washington) and for the foundations of the Tacoma Narrows Bridge.


Ex Output:

b