People looking at the train from a train track platform.
A group watches a locomotive.
People looking at a train means they watch a locomotive.
exists e1 x1 x2 x3 x4.(at(e1,x2) & from(x2,x3) & n_platform(x3) & of(x3,x4) & n_track(x4) & of(x3,x2) & n_train(x2) & n_train(x2) & Actor(e1,x1) & v_look(e1) & n_people(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_locomotive(x2) & n_group(x1))