o sini ni ni ni ni
o sini ni ni ni ni .
o WORD_BOUNDARY s i n i WORD_BOUNDARY n i WORD_BOUNDARY n i WORD_BOUNDARY n i WORD_BOUNDARY n i WORD_BOUNDARY
o WORD_BOUNDARY s i n i WORD_BOUNDARY n i WORD_BOUNDARY n i WORD_BOUNDARY n i WORD_BOUNDARY n i WORD_BOUNDARY . WORD_BOUNDARY