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