A large group of people getting on a train.
A group of people are on their way to work.
A group of people on a train are not necessarily on their way to work.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & on(e1,x4) & n_train(x4) & Actor(e1,x3) & v_get(e1) & (x2 = x3) & n_people(x2) & n_group(x1) & a_large(s1) & Theme(s1,x1))
exists p1 x1 x2 x3.(exists p2.(on(x1,x3) & Topic(x3,p2) & exists e1.(Actor(e1,x3) & v_work(e1))) & n_way(x3) & of(x3,x1) & n_thing(x1) & of(x1,x2) & n_people(x2) & n_group(x1))