Through the truck's rear window you can see the back of the seats as well as the rear view mirror.
You can see everything inside the truck from the trucks rear window
Just because you can see the back of the seats doesn't mean you can see everything
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 e1 p1 x1 x2 x5 x6.(n_window(x5) & of(x5,x6) & n_rear(x6) & of(x5,x2) & n_truck(x2) & n_truck(x2) & n_person(x1) & all x4.(n_thing(x4) -> exists e2.(Theme(e2,x4) & Actor(e2,x1) & v_see(e2) & from(x4,x5))) & all x3.(n_thing(x3) -> inside(x3,x2)) & Topic(e1,p1) & Actor(e1,x1) & v_can(e1))