o autobús sube pola montaña
o autobús sube pola montaña .
o̞ WORD_BOUNDARY a u t o̞ β u s WORD_BOUNDARY s u β e̞ WORD_BOUNDARY p o̞ l a WORD_BOUNDARY m o̞ n t a ɲ a WORD_BOUNDARY
o WORD_BOUNDARY a u t o b ú s WORD_BOUNDARY s u b e WORD_BOUNDARY p o l a WORD_BOUNDARY m o n t a ñ a WORD_BOUNDARY . WORD_BOUNDARY