Question: Where is the line abandoned by the routes operated by Northern on behalf of Merseytravel?
Sentence (from "List of bus routes in Brooklyn"): Many of them are the direct descendants of streetcar lines (see list of streetcar lines in Brooklyn); the ones that started out as bus routes were almost all operated by the Brooklyn Bus Corporation, a subsidiary of the Brooklyn–Manhattan Transit Corporation, until the New York City Board of Transportation took over on June 5, 1940.
Relevant evidence: No