Complex sentence: The ALCO FA was a family of B-B diesel locomotives built to haul freight trains, built in Schenectady, New York in the United States by the American Locomotive Company (ALCO) between January, 1946 and May, 1959.
Split into simpler sentences: The ALCO FA was a family of B-B diesel locomotives designed to haul freight trains. The locomotives were built in Schenectady, New York by the American Locomotive Company (ALCO) between January, 1946 and May, 1959.