This man with a white hard hat , and gray vest , and long-sleeve shirt is standing on top of a roof .
It is impossible that the city worker prepares to work on the power line above the house .
Chances are about even that the city worker prepares to work on the power line above the house .
It is impossible that the city worker prepares to work on the power line above the house .
The city worker prepares to work on the power line above the house .