ama kuda nil ama kuda nil
ama kuda nil ama kuda nil .
a m a WORD_BOUNDARY k u d a WORD_BOUNDARY n i l WORD_BOUNDARY a m a WORD_BOUNDARY k u d a WORD_BOUNDARY n i l WORD_BOUNDARY
a m a WORD_BOUNDARY k u d a WORD_BOUNDARY n i l WORD_BOUNDARY a m a WORD_BOUNDARY k u d a WORD_BOUNDARY n i l WORD_BOUNDARY . WORD_BOUNDARY