بَنَى الْمَجْلِسُ خَزَّانًا لِلْمَاءِ.
The council built a water reservoir.
If workers performed the construction while the council commissioned or financed it, attributing the building to the council supports an analysis as rational metaphor. The verb retains its ordinary sense; agency and predication are in view.
If council members physically constructed it, the attribution could be literal. A collective subject alone cannot prove the figure; information about the agency relationship is decisive.