koko ni haitte iru no ka
koko ni haitte iru no ka .
k o k o WORD_BOUNDARY n i WORD_BOUNDARY h a i t t e WORD_BOUNDARY i r ɯ WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY
k o k o WORD_BOUNDARY n i WORD_BOUNDARY h a i t t e WORD_BOUNDARY i r u WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY