nanka mondai ga aru no
nanka mondai ga aru no ?
n a n k a WORD_BOUNDARY m o n d a i WORD_BOUNDARY g a WORD_BOUNDARY a r ɯ WORD_BOUNDARY n o WORD_BOUNDARY
n a n k a WORD_BOUNDARY m o n d a i WORD_BOUNDARY g a WORD_BOUNDARY a r u WORD_BOUNDARY n o WORD_BOUNDARY