kiri kanan kiri kanan kiri
kiri kanan kiri kanan kiri .
k i r i WORD_BOUNDARY k a n a n WORD_BOUNDARY k i r i WORD_BOUNDARY k a n a n WORD_BOUNDARY k i r i WORD_BOUNDARY
k i r i WORD_BOUNDARY k a n a n WORD_BOUNDARY k i r i WORD_BOUNDARY k a n a n WORD_BOUNDARY k i r i WORD_BOUNDARY . WORD_BOUNDARY