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: Consider Input: Question: How many players did Maryland Mania have when Armas signed with them? Passage:In 1999, Armas signed for the Maryland Mania in the USL A-League. He began the 2000 season with the Raleigh Capital Express, playing four games. He also spent time with D.C. United. In June 2000, the Columbus Crew signed Armas as a Discovery Player. He played four regular season games with the Crew. He also played on 2000 Open Cup game for the Crew, coming on for John DeBrito in the 66th minute. He also went on loan to MLS Pro 40 for one game. The Crew waived him at the end of the season. In November 2000, the Tampa Bay Mutiny claimed Armas off waivers, but released him before the season. In 2001, John Dugan, who had coached the Express in 2000, became the new head coach of the Atlanta Silverbacks. He promptly signed Armas. On June 12, 2001, half way through the season, the Silverbacks traded Armas to the Minnesota Thunder in a three-way trade which sent Andrew Restrepo from the Rochester Rhinos to Atlanta and Stoian Mladenov to the Rhinos from Minnesota. In 2002, Armas played three games with the Cincinnati Riverhawks. In 2003, he played seventeen games for the Carolina Dynamo, scoring five goals and adding 16 assists as the Dynamo took the league title. Armas was selected as a first team All Star. He then moved to the Pittsburgh Riverhounds for the 2004 USL Second Division season and was back with Carolina for the 2005 season.


Output: a


Input: Consider Input: 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.


Output: a


Input: Consider Input: Question: What was the reason for the event Alfred was expelled for participating in? Passage:Alfred Stillé (October 30, 1813 – September 24, 1900) was an American physician. Born in Philadelphia, he studied classics at Yale, but was expelled for participating in the Conic Sections Rebellion. He then transferred to the University of Pennsylvania in the same year, where he received an A.B. degree in 1832. He went on to get an A.M. from the University of Pennsylvania in 1835 and in 1836 an M.D. from the school's department of medicine. He settled to practice in his native city, but spent parts of 1841 and 1851 in Paris and Vienna. From 1854 to 1859 he was professor of medicine at the Pennsylvania Medical College and from 1864 to 1884 at the University of Pennsylvania, later becoming its Chair. Stillé was one of the first in America to distinguish between typhus and typhoid fever. His observations in this connection he made during a typhus epidemic in Philadelphia in 1836 and reported in 1838. He acquired a great reputation as a practitioner, teacher, and writer, and was the first secretary, and in 1871–72 the president, of the American Medical Association. However, as evidenced by his later writings, he was also known for refusing to accept the germ theory or laboratory medicine.



Output: b