son zapatos no son zapatillas
son zapatos no son zapatillas .
s o̞ n WORD_BOUNDARY s a p a t o̞ s WORD_BOUNDARY n o̞ WORD_BOUNDARY s o̞ n WORD_BOUNDARY s a p a t i ʝ a s WORD_BOUNDARY
s o n WORD_BOUNDARY z a p a t o s WORD_BOUNDARY n o WORD_BOUNDARY s o n WORD_BOUNDARY z a p a t i l l a s WORD_BOUNDARY . WORD_BOUNDARY