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.
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Question: Question: Which rolling stock did the Turboliner replace? Passage:Following its takeover of most passenger rail service in the United States on May 1, 1971, Amtrak retained the Abraham Lincoln as a daily Chicago-St. Louis service, operating in tandem with the GM&O's old Limited. In November of that year Amtrak extended both the Abraham Lincoln and the Limited (now known as the Prairie State) through Chicago to Milwaukee, Wisconsin. In October 1973, Amtrak replaced the rolling stock with the new French-built Turboliner; as part of this change the trains were re-branded as Turboliners and truncated to Chicago. In February 1976 Amtrak returned conventional rolling stock to the route and revived the Abraham Lincoln name along with the Ann Rutledge. Amtrak added the State House to the Chicago-St. Louis corridor in 1977. Also in 1977, Amtrak extended the Abraham Lincoln to Kansas City and renamed it the Ann Rutledge–a name that had briefly disappeared from the timetable in 1976-77 when Amtrak extended the Inter-American to Chicago. Today service between Chicago and St. Louis is handled by the "Lincoln Service".


Answer: b


Question: Question: How long had the Atlanta Braves been a team when the Mets swept them in a National League Championship Series? Passage:The Mets went on to sweep the Atlanta Braves in the 1969 National League Championship Series, but were heavy underdogs heading into the 1969 World Series against the Baltimore Orioles. Following a 4-1 loss in the series opener with Cy Young award winner Seaver on the mound, it seemed as if the Mets had little chance against the Orioles. However, the Mets bounced back, winning the next four games to capture their first world championship. Besides catching every inning in the post-season, Grote contributed offensively with a single in Game Two to keep a ninth inning rally alive and Al Weis followed with the game-winning hit. With Game Four tied, Grote doubled to start the tenth inning, then pinch runner Rod Gaspar scored the winning run when an errant throw hit J.C. Martin on the wrist. With Grote calling the pitches, the Mets pitching staff held the Orioles hitters to a .146 batting average during the series.


Answer: a


Question: Question: How many ships did the Republic of Korea Navy have the year the USS Albatross departed Sasebo for Operation Market Time? Passage:The minesweeper departed Sasebo on 5 January 1966 for an "Operation Market Time" deployment off the coast of Vietnam. On the 9th she paused briefly at Kaohsiung to take on fuel and provisions. She arrived on her station south of Vung Tau on 14 January and patrolled the sea lanes in her area until relieved on 22 February. The minesweeper returned to Sasebo on 5 March to begin one and one-half months of upkeep and training. On 21 April Albatross sailed in company with Epping Forest (MCS-7), Warbler (MSC-206), and Peacock (MSC-198) for Chinhae, Korea and an exercise with the Republic of Korea Navy. Following the five-day exercise, she visited Kure on 29 April before returning to Sasebo on 4 May. Albatross got underway on 20 May for the South China Sea in company with Warbler. Her station was located off the tip of the Camau peninsula, and her patrol lasted through 9 July. Albatross then sailed due south to visit Singapore from 12 to 16 July and made a port call at Hong Kong before among back in Sasebo on 30 July.


Answer:
a