sentence: A marching group of cadets in dark clothing comes into view in what appears to be a downtown city square. sentence:  A drum corp is heard drumming proudly as the cadets march down the street. sentence:  The marchers begin waving to the crowd and greeting the onlookers. sentence:  A long train whistle is heard as the cadets continue to wave to the crowd. sentence:  Behind the cadets, a marching band comes into view, dressed in white. sentence:  The band marches by while playing cadet songs.