nani iro ni natta ka nee
nani iro ni natta ka nee ?
n a n i WORD_BOUNDARY i r o WORD_BOUNDARY n i WORD_BOUNDARY n a t t a WORD_BOUNDARY k a WORD_BOUNDARY n eː WORD_BOUNDARY
n a n i WORD_BOUNDARY i r o WORD_BOUNDARY n i WORD_BOUNDARY n a t t a WORD_BOUNDARY k a WORD_BOUNDARY n e e WORD_BOUNDARY