Two climbers attempting to climb a steep , snow-covered peak , nearing the top , where two other climbers await them .
It is likely that there are climbers at the bottom of a mountain preparing to ascend .
It is impossible that there are climbers at the bottom of a mountain preparing to ascend .
It is likely that there are climbers at the bottom of a mountain preparing to ascend .
There are climbers at the bottom of a mountain preparing to ascend .