Instructions: In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
Input: Which station is not connected to Back Bay, Route 128 Station or South Station?, Context: Amtrak's Northeast Corridor and Chicago lines originate at South Station, which serves as a major intermodal transportation hub, and stop at Back Bay. Fast Northeast Corridor trains, which serve New York City, Washington, D.C., and points in between, also stop at Route 128 Station in the southwestern suburbs of Boston. Meanwhile, Amtrak's Downeaster service to Maine originates at North Station, despite the current lack of a dedicated passenger rail link between the two railhubs, other than the "T" subway lines.
Output:
Route 128 Station