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: Of the non-league football clubs that Dave Dunmore played for, are any still active? Passage:Dunmore joined West Ham United during the 1959-60 season in an exchange deal that saw Johnny Smith move in the other direction. He made his West Ham debut on 19 March 1960 against Blackburn Rovers, and went on to make 39 appearances for the club, scoring 18 goals. He played his last game for the Irons on 4 March 1961, a home defeat against West Bromwich Albion, and joined Leyton Orient. With Malcolm Graham, Dunmore was Orient's joint top scorer in their only season in the First Division. He rejoined York City for the 1965–66 season and was part of the team that finished bottom of the Third Division. His second season back at the club, and his last in League football, saw the club finish 22nd of 24 teams in the Fourth Division. He then had spellls in non-league football with Worcester City, Wellington Town, Bridlington Trinity and Scarborough, and in Ireland with Sligo Rovers.


b