Picture of a train and people in a subway.
The people are waiting for the train to stop.
The people could be waiting for something other than the train to stop.
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 p1 x1 x2.(n_train(x2) & n_people(x1) & Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2.(Actor(e2,x2) & v_stop(e2)))