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