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 many American League teams has Trembley worked for? Passage:David Michael Trembley (born October 31, 1951 in Carthage, New York) is an American professional baseball executive who served as director of player development of the Atlanta Braves in . Trembley has been the bench coach for the Houston Astros, and a manager of the Baltimore Orioles. Before managing the Orioles Trembley was a minor league manager for twenty seasons compiling a 1369–1413 record. He won two league titles and earned Manager of the Year awards in three leagues. In December 2001, Baseball America selected him as one of minor league baseball's top five managers of the previous 20 years. He served as a coach in the inaugural Futures Game in 1999 and also served as manager for the Southern League and Double-A All-Star Games that season. Trembley has worked for the Baltimore Orioles, Chicago Cubs, Pittsburgh Pirates, San Diego Padres and Atlanta Braves.


b