ichiban shita da kara
ichiban shita da kara .
i t̠ʃ i b a n WORD_BOUNDARY ʃ i t a WORD_BOUNDARY d a WORD_BOUNDARY k a r a WORD_BOUNDARY
i c h i b a n WORD_BOUNDARY s h i t a WORD_BOUNDARY d a WORD_BOUNDARY k a r a WORD_BOUNDARY