sini sini sama mama sama mama
sini sini sama mama sama mama .
s i n i WORD_BOUNDARY s i n i WORD_BOUNDARY s a m a WORD_BOUNDARY m a m a WORD_BOUNDARY s a m a WORD_BOUNDARY m a m a WORD_BOUNDARY
s i n i WORD_BOUNDARY s i n i WORD_BOUNDARY s a m a WORD_BOUNDARY m a m a WORD_BOUNDARY s a m a WORD_BOUNDARY m a m a WORD_BOUNDARY . WORD_BOUNDARY