Picture of a train and people in a subway.
People are standing in the subway.
People can be standing in the subway in a picture.
exists x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & subset_of(x4,x2) & in(x4,x5) & n_subway(x5) & n_people(x4) & subset_of(x3,x2) & n_train(x3) & n_picture(x1))
exists e1 x1 x2.(n_subway(x2) & in(e1,x2) & Actor(e1,x1) & v_stand(e1) & n_people(x1))