mía a búba a búa búa
mía a búba a búa búa .
m j a WORD_BOUNDARY a WORD_BOUNDARY β u β a WORD_BOUNDARY a WORD_BOUNDARY β w a WORD_BOUNDARY β w a WORD_BOUNDARY
m í a WORD_BOUNDARY a WORD_BOUNDARY b ú b a WORD_BOUNDARY a WORD_BOUNDARY b ú a WORD_BOUNDARY b ú a WORD_BOUNDARY . WORD_BOUNDARY