An old man stands beside a sea.
The old man is a statue.
You can not infer he is a statue.
exists e1 s1 x1 x2.(beside(e1,x2) & n_sea(x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1) & a_old(s1) & Theme(s1,x1))
exists p1 s1 x1.(n_man(x1) & a_old(s1) & Theme(s1,x1) & exists x2.((x1 = x2) & n_statue(x2)))