Two young boys are climbing over the seat in a vehicle.
The boys were in the front, but need to sit in the backseat of the car.
The first sentence doesn't provide a reason for why the boys are climbing or that the boys are supposed to be in the backseat of the car.
exists e1 s1 x1 x2 x3.(n_seat(x2) & in(e1,x3) & n_vehicle(x3) & over(e1,x2) & Actor(e1,x1) & v_climb(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 p1 p2 x1 x2 x3 x4.(n_car(x4) & n_backseat(x3) & n_boy(x1) & n_front(x2) & Topic(e1,p2) & Actor(e1,x1) & v_need(e1) & exists e2.(in(e2,x3) & of(x3,x4) & Actor(e2,x1) & v_sit(e2)) & in(x1,x2))