kaidan ga aru n yaro
kaidan ga aru n yaro ?
k a i d a n WORD_BOUNDARY g a WORD_BOUNDARY a r ɯ WORD_BOUNDARY n WORD_BOUNDARY j a r o WORD_BOUNDARY
k a i d a n WORD_BOUNDARY g a WORD_BOUNDARY a r u WORD_BOUNDARY n WORD_BOUNDARY y a r o WORD_BOUNDARY