A solitary passenger stands on a subway station.
A passenger waits for the train
Not all passengers at the subway station are waiting for the train.
exists e1 s1 x1 x2 x3.(on(e1,x2) & n_station(x2) & of(x2,x3) & n_subway(x3) & Actor(e1,x1) & v_stand(e1) & n_passenger(x1) & a_solitary(s1) & Theme(s1,x1))
exists x1 x2 x3.(n_train(x3) & a_topic(x1) & for(x1,x3) & n_wait(x1) & of(x1,x2) & n_passenger(x2))