Workers dig deeply into a rock and stone hole with tools placed on the ground before them .
The workers have been digging for many hours .
Workers dig deeply into a rock and stone hole with tools placed on the ground before them.
The workers have been digging for many hours.
It is unclear if these people are workers and also if they have been digging many hours.
It is unclear if these people are workers and also if they have been digging many hours .