sini ni taro sini ni
sini ni taro sini ni .
s i n i WORD_BOUNDARY n i WORD_BOUNDARY t a r o WORD_BOUNDARY s i n i WORD_BOUNDARY n i WORD_BOUNDARY
s i n i WORD_BOUNDARY n i WORD_BOUNDARY t a r o WORD_BOUNDARY s i n i WORD_BOUNDARY n i WORD_BOUNDARY . WORD_BOUNDARY