oto ga shinakatta kedo
oto ga shinakatta kedo .
o t o WORD_BOUNDARY g a WORD_BOUNDARY ʃ i n a k a t t a WORD_BOUNDARY k e d o WORD_BOUNDARY
o t o WORD_BOUNDARY g a WORD_BOUNDARY s h i n a k a t t a WORD_BOUNDARY k e d o WORD_BOUNDARY