las tortugas van rápido
las tortugas van rápido .
l a s WORD_BOUNDARY t o̞ ɾ t u ɡ a s WORD_BOUNDARY β a n WORD_BOUNDARY ɾ a p i d o̞ WORD_BOUNDARY
l a s WORD_BOUNDARY t o r t u g a s WORD_BOUNDARY v a n WORD_BOUNDARY r á p i d o WORD_BOUNDARY . WORD_BOUNDARY