ippen ni ban to irereba
ippen ni ban to irereba .
i p p e n WORD_BOUNDARY n i WORD_BOUNDARY b a n WORD_BOUNDARY t o WORD_BOUNDARY i r e r e b a WORD_BOUNDARY
i p p e n WORD_BOUNDARY n i WORD_BOUNDARY b a n WORD_BOUNDARY t o WORD_BOUNDARY i r e r e b a WORD_BOUNDARY