di ini dulu satu+satu
di ini dulu satu satu .
d i WORD_BOUNDARY i n i WORD_BOUNDARY d u l u WORD_BOUNDARY s a t u WORD_BOUNDARY s a t u WORD_BOUNDARY
d i WORD_BOUNDARY i n i WORD_BOUNDARY d u l u WORD_BOUNDARY s a t u WORD_BOUNDARY s a t u WORD_BOUNDARY . WORD_BOUNDARY