sini udah duduk sini
sini udah duduk sini .
s i n i WORD_BOUNDARY u d a h WORD_BOUNDARY d u d u k WORD_BOUNDARY s i n i WORD_BOUNDARY
s i n i WORD_BOUNDARY u d a h WORD_BOUNDARY d u d u k WORD_BOUNDARY s i n i WORD_BOUNDARY . WORD_BOUNDARY