maman x descend
maman x descendre
n n v
maman x descend !
m a m ɑ̃ WORD_BOUNDARY  i k s WORD_BOUNDARY d ɛ s ɑ̃ WORD_BOUNDARY
m a m a n WORD_BOUNDARY x WORD_BOUNDARY d e s c e n d WORD_BOUNDARY ! WORD_BOUNDARY