Definition: Compose a new way to ask the same question. The new question must be asking the exact same thing as the original question does. Without any other information, you should be able to tell that the original question and the new question are the same. Preserve bracketed phrases in your new question. You can change the rest of the question provided the above requirements are satisfied. The new question must have a natural, fluent formulation, as if it were composed by a native English speaker. You will be given three pieces of information to help you create better questions. Those are: "Answer": the answer to the question, e.g., "Honolulu". "Answer Type": the type of the answer, e.g., "Location". "Auxiliary Information" is a detailed description of some concepts mentioned in the question, if any.
Input: original question: Which mass transportation system has transit lines whose terminus is [Grand Central Terminal]?
answer: new york city subway
answer type: Mass Transportation System.
auxiliary information: Grand Central Terminal is a commuter railroad terminal at 42nd Street and Park Avenue in Midtown Manhattan in New York City, United States. Built by and named for the New York Central Railroad in the heyday of American long-distance passenger rail travel, it covers 48 acres and has 44 platforms, more than any other railroad station in the world. Its platforms, all below ground, serve 41 tracks on the upper level and 26 on the lower, though the total number of tracks along platforms and in rail yards exceeds 100. The terminal serves commuters traveling on the Metro-North Railroad to Westchester, Putnam, and Dutchess counties in New York State, and Fairfield and New Haven counties in Connecticut. Until 1991, the terminal served Amtrak, which moved to nearby Pennsylvania Station upon completion of the Empire Connection. The East Side Access project is underway to bring Long Island Rail Road service to the terminal. Although the terminal has been properly called "Grand Central Terminal" since 1913, it has "always been more colloquially and affectionately known as Grand Central Station", which is the name of the previous rail station on the same site, and also the name of the U.S.

Which mass transportation system has transit lines terminating in [Grand Central Terminal]?