Complex sentence: The Church of Our Lady of the Miraculous Medal is a Roman Catholic parish church under the authority of the Roman Catholic Archdiocese of New York, located at 114th Street at Seventh Avenue in Manhattan, New York City.
Split into simpler sentences: The Church of Our Lady of the Miraculous Medal was a Roman Catholic parish, a part of the Roman Catholic Archdiocese of New York. The church was located at 114th Street and 7th Avenue in Manhattan, New York City.