Complex sentence: Castle Hill Avenue is an elevated station on the IRT Pelham Line of the New York City Subway, it is served by the line and is located at Castle Hill Avenue and Westchester Avenue in the Bronx.
Split into simpler sentences: Castle Hill Avenue is an elevated station on the IRT Pelham Line of the New York City Subway. It is served by the service and is located at Castle Hill Avenue and Westchester Avenue in the Bronx.