on on appuie sur
on appuyer sur
pro:sub v prep
on on appuie sur .
ɔ̃ n WORD_BOUNDARY ɔ̃ n WORD_BOUNDARY a p y i WORD_BOUNDARY s y ʁ WORD_BOUNDARY
o n WORD_BOUNDARY o n WORD_BOUNDARY a p p u i e WORD_BOUNDARY s u r WORD_BOUNDARY