A woman sits in a subway station.
A woman is waiting for the next train at a subway station.
A woman sitting in a subway station is not always waiting for the next train.
exists e1 x1 x2 x3.(in(e1,x2) & n_station(x2) & of(x2,x3) & n_subway(x3) & Actor(e1,x1) & v_sit(e1) & n_woman(x1))
exists e1 s1 x1 x2 x3 x4.(n_train(x2) & a_next(s1) & Theme(s1,x2) & at(e1,x3) & n_station(x3) & of(x3,x4) & n_subway(x4) & for(e1,x2) & Actor(e1,x1) & v_wait(e1) & n_woman(x1))