Complex sentence: East Tremont Avenue (signed in the station as Westchester Square) 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 East Tremont Avenue and Westchester Avenue in the Bronx.
Split into simpler sentences: East Tremont Avenue (signed in the station as Westchester Square) is an elevated station on the IRT Pelham Line of the New York City Subway. It is served by the train and is located at East Tremont Avenue and Westchester Avenue in the Bronx.