las pelotas son redondas
las pelotas son redondas .
l a s WORD_BOUNDARY p e̞ l o̞ t a s WORD_BOUNDARY s o̞ n WORD_BOUNDARY ɾ e̞ d o̞ n d a s WORD_BOUNDARY
l a s WORD_BOUNDARY p e l o t a s WORD_BOUNDARY s o n WORD_BOUNDARY r e d o n d a s WORD_BOUNDARY . WORD_BOUNDARY