he+em bisa ditumpuk
he em bisa ditumpuk .
h ə WORD_BOUNDARY ə m WORD_BOUNDARY b i s a WORD_BOUNDARY d i t u m p u k WORD_BOUNDARY
h e WORD_BOUNDARY e m WORD_BOUNDARY b i s a WORD_BOUNDARY d i t u m p u k WORD_BOUNDARY . WORD_BOUNDARY