Oniichan ga kaetta kaetta
oniichan ga kaetta kaetta .
o n i i t̠ʃ a n WORD_BOUNDARY g a WORD_BOUNDARY k a e t t a WORD_BOUNDARY k a e t t a WORD_BOUNDARY
o n i i c h a n WORD_BOUNDARY g a WORD_BOUNDARY k a e t t a WORD_BOUNDARY k a e t t a WORD_BOUNDARY