aduh Mama ditabrak waduh
aduh mama ditabrak waduh .
a d u h WORD_BOUNDARY m a m a WORD_BOUNDARY d i t a b r a k WORD_BOUNDARY w a d u h WORD_BOUNDARY
a d u h WORD_BOUNDARY m a m a WORD_BOUNDARY d i t a b r a k WORD_BOUNDARY w a d u h WORD_BOUNDARY . WORD_BOUNDARY