a koko ni aru koko ni aru
a koko ni aru koko ni aru .
a WORD_BOUNDARY k o k o WORD_BOUNDARY n i WORD_BOUNDARY a r ɯ WORD_BOUNDARY k o k o WORD_BOUNDARY n i WORD_BOUNDARY a r ɯ WORD_BOUNDARY
a WORD_BOUNDARY k o k o WORD_BOUNDARY n i WORD_BOUNDARY a r u WORD_BOUNDARY k o k o WORD_BOUNDARY n i WORD_BOUNDARY a r u WORD_BOUNDARY