People ride in a cart being pulled by a donkey.
poor people are pulled in a cart
People can be poor. Poor people can be pulled in a cart. Not all people are poor. Not all people are necessarily pulled in a cart.
exists e1 e2 x1 x2 x3 x4.(in(e1,x2) & Actor(e2,x4) & n_donkey(x4) & Theme(e2,x3) & v_pull(e2) & (x2 = x3) & n_cart(x2) & Actor(e1,x1) & v_ride(e1) & n_people(x1))
exists e1 s1 x1 x2.(in(e1,x2) & n_cart(x2) & Theme(e1,x1) & v_pull(e1) & n_people(x1) & a_poor(s1) & Theme(s1,x1))