A man is sitting on a silver scooter.
The man is old
We have no idea if the man is old or young.
exists e1 x1 x2 x3.(on(e1,x2) & n_scooter(x2) & of(x2,x3) & n_silver(x3) & Actor(e1,x1) & v_sit(e1) & n_man(x1))
exists s1 x1.(n_man(x1) & Theme(s1,x1) & a_old(s1))