Six males, four with shirts and two without, have taken a break from their construction work on a building.
A construction crew is sitting and standing next to a building.
Just because they are sitting doesn't mean they are taking a break.
They can lie down, or engage in any other things rather than sitting or standing during break
We have no idea if they are a construction crew, they could be anyone. We have no idea if they are sitting or standing, they could be doing anything.