Construction workers are working on a construction project.
The workers were replacing windows.
Working on a construction project does not necessitate replacing windows.
exists e1 x1 x2 x3 x4.(on(e1,x3) & n_project(x3) & of(x3,x4) & n_construction(x4) & Actor(e1,x1) & v_work(e1) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists e1 x1 x2.(n_worker(x1) & Theme(e1,x2) & Actor(e1,x1) & v_replace(e1) & n_window(x2))