Original sentence: (behind),   (picture),   (long).before l, n, r (in the case of a, e, o, w, y), e.before l, n, r (in the case of i, u), e
Edited sentence: (behind),   (picture),   (long), while the other vowel letters (a, e, o, w, y) are short, e.Before l, n, and r, unmarked i and u are long, e