ara Kumichan irashatta
ara kumichan irashatta .
a r a WORD_BOUNDARY k ɯ m i t̠ʃ a n WORD_BOUNDARY i r a ʃ a t t a WORD_BOUNDARY
a r a WORD_BOUNDARY k u m i c h a n WORD_BOUNDARY i r a s h a t t a WORD_BOUNDARY