ichidanbeddo to nidanbeddo
to
ptl:coo
ichidanbeddo to nidanbeddo .
i t̠ʃ i d a n b e d d o WORD_BOUNDARY t o WORD_BOUNDARY n i d a n b e d d o WORD_BOUNDARY
i c h i d a n b e d d o WORD_BOUNDARY t o WORD_BOUNDARY n i d a n b e d d o WORD_BOUNDARY