Given the task definition and input, reply with output. This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Passage: The "Notre Dame Victory March" is the fight song for the University of Notre Dame. It was written by two brothers who were Notre Dame graduates. The Rev. Michael J. Shea, a 1904 graduate, wrote the music, and his brother, John F. Shea, who earned degrees in 1906 and 1908, wrote the original lyrics. The lyrics were revised in the 1920s; it first appeared under the copyright of the University of Notre Dame in 1928. The chorus is, "Cheer cheer for old Notre Dame, wake up the echos cheering her name. Send a volley cheer on high, shake down the thunder from the sky! What though the odds be great or small, old Notre Dame will win over all. While her loyal sons are marching, onward to victory!" Question: To where are the loyal sons in "Notre Dame Fight Song" marching?
onward to victory