A man is climbing a rock formation .
It is probably the case that the man jumps of the rock cliff and lands on his feet , uninjured .
It is impossible that the man jumps of the rock cliff and lands on his feet , uninjured .
It is probably the case that the man jumps of the rock cliff and lands on his feet , uninjured .
The man jumps of the rock cliff and lands on his feet , uninjured .