A man is moving a gate that impedes the progress of an oncoming train.
The man is working.
moving a gate is working.
exists e1 e2 s1 x1 x2 x3 x4 x5.(n_progress(x4) & Theme(e2,x2) & Actor(e2,x1) & v_move(e2) & Theme(e1,x4) & Actor(e1,x3) & v_impede(e1) & of(x4,x5) & n_train(x5) & a_oncoming(s1) & Theme(s1,x5) & (x2 = x3) & n_gate(x2) & n_man(x1))
exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_work(e1))