ibu dan kakak no ibu ibu dan
ibu dan kakak no ibu ibu dan .
i b u WORD_BOUNDARY d a n WORD_BOUNDARY k a k a k WORD_BOUNDARY n o WORD_BOUNDARY  i b u WORD_BOUNDARY  i b u WORD_BOUNDARY d a n WORD_BOUNDARY
i b u WORD_BOUNDARY d a n WORD_BOUNDARY k a k a k WORD_BOUNDARY n o WORD_BOUNDARY i b u WORD_BOUNDARY i b u WORD_BOUNDARY d a n WORD_BOUNDARY