A small tourist train approaching a tunnel.
The doesn't have any passenger cars.
A car is not the same as a train.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_approach(e1) & n_tunnel(x4) & (x1 = x3) & n_train(x1) & of(x1,x2) & n_tourist(x2) & a_small(s1) & Theme(s1,x1))
(x)