oopun shite ageru kara
oopun shite ageru kara .
oː p ɯ n WORD_BOUNDARY ʃ i t e WORD_BOUNDARY a g e r ɯ WORD_BOUNDARY k a r a WORD_BOUNDARY
o o p u n WORD_BOUNDARY s h i t e WORD_BOUNDARY a g e r u WORD_BOUNDARY k a r a WORD_BOUNDARY