Sticks, stones, hammers and knives were all that remained workable.
The only things that were still usable were the sticks, stones, hammers, and knives.
There were no sticks or stones remaining.
She was looking down at her own feet.
The person's head is uncovered.
The mountain ranges are protecting the eastern and southern frontiers.
The examination process increased its cost.
the boys hands are empty
This hair-splitting doesn't make any sense.