You will be given a definition of a task first, then some input of the task.
In this task, you will be presented with a question and you have to answer the question based on your knowledge. Your answers should be as short as possible.

Operating in the mid-20th century , what train rode on a railroad started in the 1890s and with one of two end points ending in the most populous city in America ?
Output:
Umpachanee