A young boy is on the back of another person whom is wearing a hat.
A woman is bent under a load of firewood on her back.
A boy is male and a woman is female and you cannot be both sexes at the same time.
exists p1 s1 x1 x2 x3.(n_person(x3) & n_back(x2) & exists p2 x4.(on(x1,x2) & of(x2,x4) & exists e1 x5 x6.(Theme(e1,x6) & Actor(e1,x5) & v_wear(e1) & n_hat(x6) & n_whom(x5)) & that(x4,p2) & n_person(x4) & -(x4 = x3)) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists s1 x1 x2 x3 x4.(under(s1,x2) & of(x2,x3) & on(x3,x4) & n_back(x4) & of(x4,x1) & n_female(x1) & n_firewood(x3) & n_load(x2) & Theme(s1,x1) & a_bent(s1) & n_woman(x1))