Many children wearing hats aboard a train.
A large group of people are looking at a train that has derailed.
one group is aboard a train while the other group is looking at a train
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & aboard(x3,x4) & n_train(x4) & n_hat(x3) & (x1 = x2) & n_child(x1) & n_quantity(x1))
exists e1 e2 s1 x1 x2 x3 x4.(at(e1,x3) & Actor(e2,x4) & v_derail(e2) & (x3 = x4) & n_train(x3) & Actor(e1,x1) & v_look(e1) & of(x1,x2) & n_people(x2) & n_group(x1) & a_large(s1) & Theme(s1,x1))