The young man in the blue shirt holds the ladder for the man in the white shirt in a graffiti-covered alley .
It is impossible that a woman holds the ladder for another woman while she ascends the ladder .
It is impossible that a woman holds the ladder for another woman while she ascends the ladder .
There is a better than even chance that a woman holds the ladder for another woman while she ascends the ladder .
A woman holds the ladder for another woman while she ascends the ladder .