aduh kamu batuk batuk
aduh kamu batuk batuk .
a d u h WORD_BOUNDARY k a m u WORD_BOUNDARY b a t u k WORD_BOUNDARY b a t u k WORD_BOUNDARY
a d u h WORD_BOUNDARY k a m u WORD_BOUNDARY b a t u k WORD_BOUNDARY b a t u k WORD_BOUNDARY . WORD_BOUNDARY