Task: Sentence Expansion
Input (English): The Poughkeepsie Bridge ( sometimes known as the Poughkeepsie Railroad Bridge or the Poughkeepsie-Highland Railroad Bridge ) is a cantilever bridge over the Hudson River .
Output (English): The Walkway over the Hudson ( also known as the Poughkeepsie Bridge , Poughkeepsie Railroad Bridge , Poughkeepsie-Highland Railroad Bridge , and High Bridge ) is a steel cantilever bridge spanning the Hudson River between Poughkeepsie , New York , on the east bank and Highland , New York , on the west bank .