a bóbo a bobó a bóbo abobá
a bóbo a bobó a bóbo abobá .
a WORD_BOUNDARY β o̞ β o̞ WORD_BOUNDARY a WORD_BOUNDARY β o̞ β o̞ WORD_BOUNDARY a WORD_BOUNDARY β o̞ β o̞ WORD_BOUNDARY a β o̞ β a WORD_BOUNDARY
a WORD_BOUNDARY b ó b o WORD_BOUNDARY a WORD_BOUNDARY b o b ó WORD_BOUNDARY a WORD_BOUNDARY b ó b o WORD_BOUNDARY a b o b á WORD_BOUNDARY . WORD_BOUNDARY