Three men are working construction on top of a building.
Three men build a room on top of a building.
The men are not necessarily building a room.
exists e1 x1 x2 x3 x4.(on(e1,x3) & of(x3,x4) & n_building(x4) & n_top(x3) & Theme(e1,x2) & Actor(e1,x1) & v_work(e1) & n_construction(x2) & n_man(x1) & card_eq_3(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_build(e1) & on(x2,x3) & of(x3,x4) & n_building(x4) & n_top(x3) & n_room(x2) & n_man(x1) & card_eq_3(x1))