abre casa abrir caca
abri casa abri casa
v n inf n
abre casa abrir caca .
a β ɾ e̞ WORD_BOUNDARY k a s a WORD_BOUNDARY a β ɾ i ɾ WORD_BOUNDARY k a k a WORD_BOUNDARY
a b r e WORD_BOUNDARY c a s a WORD_BOUNDARY a b r i r WORD_BOUNDARY c a c a WORD_BOUNDARY . WORD_BOUNDARY