mina ga kaette kimashita
mina ga kaette kimashita .
m i n a WORD_BOUNDARY g a WORD_BOUNDARY k a e t t e WORD_BOUNDARY k i m a ʃ i t a WORD_BOUNDARY
m i n a WORD_BOUNDARY g a WORD_BOUNDARY k a e t t e WORD_BOUNDARY k i m a s h i t a WORD_BOUNDARY