A construction worker moves a device along a rail in front of a construction site.
the man is wearing an orange vest.
Not all construction workers wear orange vests.
exists e1 x1 x2 x3 x4 x5 x6 x7.(along(e1,x4) & in(x4,x5) & of(x5,x6) & n_site(x6) & of(x6,x7) & n_construction(x7) & n_front(x5) & n_rail(x4) & Theme(e1,x3) & Actor(e1,x1) & v_move(e1) & n_device(x3) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists e1 x1 x2 x3.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_vest(x2) & of(x2,x3) & n_orange(x3))