o di tanah di dalam tanah
o di tanah di dalam tanah .
o WORD_BOUNDARY d i WORD_BOUNDARY t a n a h WORD_BOUNDARY d i WORD_BOUNDARY d a l a m WORD_BOUNDARY t a n a h WORD_BOUNDARY
o WORD_BOUNDARY d i WORD_BOUNDARY t a n a h WORD_BOUNDARY d i WORD_BOUNDARY d a l a m WORD_BOUNDARY t a n a h WORD_BOUNDARY