Through the truck's rear window you can see the back of the seats as well as the rear view mirror.
The children are visible through the rear view mirror of the truck.
you can see the back of the seats doesn't always mean The children are visible
exists e1 p1 s1 x1 x2 x3 x5 x6 x7.(n_window(x2) & of(x2,x3) & n_rear(x3) & of(x2,x1) & n_truck(x1) & n_view(x7) & a_rear(s1) & Theme(s1,x7) & n_seat(x6) & n_back(x5) & n_person(x1) & through(e1,x2) & exists e2 x4 x8.(Theme(e2,x4) & Actor(e2,x1) & v_see(e2) & subset_of(x7,x4) & Time(x7,x8) & n_mirror(x8) & subset_of(x5,x4) & of(x5,x6)) & Topic(e1,p1) & Actor(e1,x1) & v_can(e1))
exists s1 s2 x1 x2 x3 x4.(n_truck(x4) & n_view(x2) & a_rear(s2) & Theme(s2,x2) & n_child(x1) & through(s1,x2) & of(x2,x4) & Time(x2,x3) & n_mirror(x3) & Theme(s1,x1) & a_visible(s1))