udah satu+satu dulu
udah satu satu dulu .
u d a h WORD_BOUNDARY s a t u WORD_BOUNDARY s a t u WORD_BOUNDARY d u l u WORD_BOUNDARY
u d a h WORD_BOUNDARY s a t u WORD_BOUNDARY s a t u WORD_BOUNDARY d u l u WORD_BOUNDARY . WORD_BOUNDARY