Opappa no obaachan wa
opappa no obaachan wa ?
o p a p p a WORD_BOUNDARY n o WORD_BOUNDARY o b aː t̠ʃ a n WORD_BOUNDARY w a WORD_BOUNDARY
o p a p p a WORD_BOUNDARY n o WORD_BOUNDARY o b a a c h a n WORD_BOUNDARY w a WORD_BOUNDARY