a_ver abre la boca
a ver abre la boca .
a WORD_BOUNDARY β e̞ ɾ WORD_BOUNDARY a β ɾ e̞ WORD_BOUNDARY l a WORD_BOUNDARY β o̞ k a WORD_BOUNDARY
a WORD_BOUNDARY v e r WORD_BOUNDARY a b r e WORD_BOUNDARY l a WORD_BOUNDARY b o c a WORD_BOUNDARY . WORD_BOUNDARY