o iya ini ni ni ni nih
o iya ini ni ni ni nih .
o WORD_BOUNDARY  i j a WORD_BOUNDARY  i n i WORD_BOUNDARY n i WORD_BOUNDARY n i WORD_BOUNDARY n i WORD_BOUNDARY n i h WORD_BOUNDARY
o WORD_BOUNDARY i y a WORD_BOUNDARY i n i WORD_BOUNDARY n i WORD_BOUNDARY n i WORD_BOUNDARY n i WORD_BOUNDARY n i h WORD_BOUNDARY