di dalam masuk masuk masuk
di dalam masuk masuk masuk !
d i WORD_BOUNDARY d a l a m WORD_BOUNDARY m a s u k WORD_BOUNDARY m a s u k WORD_BOUNDARY m a s u k WORD_BOUNDARY
d i WORD_BOUNDARY d a l a m WORD_BOUNDARY m a s u k WORD_BOUNDARY m a s u k WORD_BOUNDARY m a s u k WORD_BOUNDARY ! WORD_BOUNDARY