Construction site for office building.
Construction site for a building project.
The construction site of a office building is a place where they are building something, so it is also a project.
exists x1 x2 x3 x4.(a_topic(x1) & for(x1,x3) & n_building(x3) & of(x3,x4) & n_office(x4) & n_site(x1) & of(x1,x2) & n_construction(x2))
exists x1 x2 x3 x4.(a_topic(x1) & for(x1,x3) & n_project(x3) & of(x3,x4) & n_building(x4) & n_site(x1) & of(x1,x2) & n_construction(x2))