a kore nani ga ochiteta no
a kore nani ga ochiteta no ?
a WORD_BOUNDARY k o r e WORD_BOUNDARY n a n i WORD_BOUNDARY g a WORD_BOUNDARY o t̠ʃ i t e t a WORD_BOUNDARY n o WORD_BOUNDARY
a WORD_BOUNDARY k o r e WORD_BOUNDARY n a n i WORD_BOUNDARY g a WORD_BOUNDARY o c h i t e t a WORD_BOUNDARY n o WORD_BOUNDARY