nan no koto itte iru ka wakaru
nan no koto itte iru ka wakaru ?
n a n WORD_BOUNDARY n o WORD_BOUNDARY k o t o WORD_BOUNDARY i t t e WORD_BOUNDARY i r ɯ WORD_BOUNDARY k a WORD_BOUNDARY w a k a r ɯ WORD_BOUNDARY
n a n WORD_BOUNDARY n o WORD_BOUNDARY k o t o WORD_BOUNDARY i t t e WORD_BOUNDARY i r u WORD_BOUNDARY k a WORD_BOUNDARY w a k a r u WORD_BOUNDARY