A lady looks out of a subway car window.
A lady is on a ferry crossing the river.
A lady on a subway car can not be on a ferry.
exists e1 x1 x2 x3 x4.(r_out(e1) & of(e1,x2) & n_window(x2) & of(x2,x4) & n_car(x4) & of(x2,x3) & n_subway(x3) & Actor(e1,x1) & v_look(e1) & n_lady(x1))
exists p1 x1 x4.(n_river(x4) & exists e1 x2 x3.(on(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_cross(e1) & (x2 = x3) & n_ferry(x2)) & n_lady(x1))