echa la cabeza para atrás
echa la cabeza para atrás .
e̞ t̠ʃ a WORD_BOUNDARY l a WORD_BOUNDARY k a β e̞ s a WORD_BOUNDARY p a ɾ a WORD_BOUNDARY a t ɾ a s WORD_BOUNDARY
e c h a WORD_BOUNDARY l a WORD_BOUNDARY c a b e z a WORD_BOUNDARY p a r a WORD_BOUNDARY a t r á s WORD_BOUNDARY . WORD_BOUNDARY