premise: A woman stands in front of a car with inflated innertubes and a sofa balanced on top.
hypothesis: A woman stands in front of a heavily loaded vehicle.
explanation_1: The fact that the car has inflated innertubes and a sofa balanced on top implies that the interior of the car is already so full that no more room could be found inside for these items.  A load sufficient to completely fill the interior of the car is generally sufficient to render the average car "heavily loaded" even without the extra cargo on top; for that matter, even the sofa alone would be enough, for many cars, to render the car "heavily loaded".
premise_logic: exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(in(e1,x2) & of(x2,x3) & with(x3,x4) & subset_of(x6,x4) & on(e2,x8) & n_top(x8) & Theme(e2,x7) & v_balance(e2) & (x6 = x7) & n_sofa(x6) & subset_of(x5,x4) & n_innertube(x5) & a_inflated(s1) & Theme(s1,x5) & n_car(x3) & n_front(x2) & Actor(e1,x1) & v_stand(e1) & n_woman(x1))
hypothesis_logic: exists e2 e1 x1 x2 x3.(in(e1,x2) & of(x2,x3) & n_vehicle(x3) & Theme(e2,x3) & v_load(e2) & r_heavily(x3) & n_front(x2) & Actor(e1,x1) & v_stand(e1) & n_woman(x1))
premise_sim: exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(with(x3,x4) & v_stand(e1) & v_balance(e2) & subset_of(x6,x4) & subset_of(x5,x4) & on(e2,x8) & of(x2,x3) & n_woman(x1) & n_top(x8) & n_sofa(x6) & n_innertube(x5) & n_front(x2) & n_car(x3) & in(e1,x2) & a_inflated(s1) & Theme(s1,x5) & Theme(e2,x7) & Actor(e1,x1) & (x6 = x7))
hypothesis_sim: exists e2 e1 x1 x2 x3.(v_stand(e1) & v_load(e2) & r_heavily(x3) & of(x2,x3) & n_woman(x1) & n_vehicle(x3) & n_front(x2) & in(e1,x2) & Theme(e2,x3) & Actor(e1,x1))