A man carrying his son in a store.
A man is carrying a boy.
This might not be the same man, as then the boy would be his son.
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(e1,x4) & n_store(x4) & Theme(e1,x3) & Actor(e1,x2) & v_carry(e1) & n_son(x3) & of(x3,x1) & n_male(x1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_carry(e1) & n_boy(x2) & n_man(x1))