A construction crew works on demolishing a building.
A construction crew is at work.
crew works on demolishing a building means the crew is at work
exists e1 e2 x1 x2 x3 x4.(on(e1,e2) & Theme(e2,x4) & Actor(e2,x3) & v_demolish(e2) & n_building(x4) & Actor(e1,x1) & v_work(e1) & n_crew(x1) & of(x1,x2) & n_construction(x2))
exists p1 x1 x2.(exists x3.(at(x1,x3) & n_work(x3)) & n_crew(x1) & of(x1,x2) & n_construction(x2))