Two men, one in a blue shirt and one in a green shirt analyze a piece of paper in the middle of a workshop area.
The coworkers are discussing a work related paper in their shop.
Two men analyzing a paper does not imply they are coworkers. Analyzing a paper does not imply they are discussing the paper. A paper in the middle of a workshop area is not implied to be work-related. Two men in a workshop area does not imply it is their workshop.
Just because two men are discussing in the middle of a workshop doesn't mean that they are coworkers. Not all piece of papers are work related papers.
Not all people are coworkers. There can be visitors at a workshop area.