brnn brnn a_ver
brnn brnn a ver .
β ɾ n n WORD_BOUNDARY β ɾ n n WORD_BOUNDARY a WORD_BOUNDARY β e̞ ɾ WORD_BOUNDARY
b r n n WORD_BOUNDARY b r n n WORD_BOUNDARY a WORD_BOUNDARY v e r WORD_BOUNDARY . WORD_BOUNDARY