Definition: 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.
Input: Question: How old were Sato's staff that were to become future geneerals when Sato was assigned command of the 2nd Special Task Fleet? Passage:On February 7, 1917 Satō was assigned command of the 2nd Special Task Fleet, a task force of Japanese destroyers deployed to Malta in the Mediterranean as part of Japan’s assistance to the Allied war effort under the Anglo-Japanese Alliance. Sato commanded two squadrons of 17 destroyers from aboard the flagship , patrolling the eastern Mediterranean from Alexandria to Marseilles and from Alexandria to Taranto against the Imperial German Navy and Austro-Hungarian Navy. His forces escorted convoys of merchant vessels and troopships, and performed anti-submarine warfare duties. Future admirals Tamon Yamaguchi and Raizō Tanaka were members of his staff. These operations were under the overall command of Royal Navy Admiral Sir Somerset Gough-Calthorpe, and Rear Admiral George A Ballard, who highly praised Satō in dispatches to London. The Japanese ships were at sea on combat duty on average 25 days or more each month. The Japanese Navy spent 72 percent of their time at sea compared with 60 percent by the British and about 45 percent by the French and Italian Navy.


a