A mountaineer in a red parka digs his two ice axes and crampons into a frozen wall of ice .
There is almost no chance that a person climbing a mountain picks into the frozen wall of ice with axes .
It is probably the case that a person climbing a mountain picks into the frozen wall of ice with axes .
There is almost no chance that a person climbing a mountain picks into the frozen wall of ice with axes .
A person climbing a mountain picks into the frozen wall of ice with axes .